Skip to content

Dedicate to Produce High Quality Power Adapters!

OuShangMei Technology Co.,Ltd

Shenzhen Oushangmei Technology Co., Ltd. is a professional manufacturer and developer of AC/DC power adapters, LED power supplies, waterproof power supplies, POE injectors, POE power supplies, phone chargers, etc. Our factory has advanced production and testing equipment, a first-class sales team, and an independent high-level R&D team. With more than 11 years of experience in China, our products have passed UL/cUL, 3C, cETL 1310, CE, FCC, KC, SAA, C/tick, CB, TUV/GS, ROHS, and other certifications.

Wall-Mounted Power Adapters: What You Need to Know
Wall-mounted power adapters, also known as wall warts, are power supplies that convert AC voltage from the wall outlet to a lower DC voltage for various electronic devices. They are widely used in homes and businesses for applications such as laptops, routers, chargers, cameras, etc. In this article, we will introduce some features and benefits of wall-mounted power adapters and how to choose the right one for your needs.

Features of Wall-Mounted Power Adapters
Wall-mounted power adapters have several features that make them convenient and reliable for powering your devices. Some of these features are:

Compact and portable: Wall-mounted power adapters are designed to plug directly into the wall or a power strip socket without taking up much space or requiring additional cords. They are easy to carry around and use in different locations.
Regulated and stable output: Wall-mounted power adapters have built-in circuits that regulate the output voltage and current to ensure a stable and consistent power delivery to your devices. They also have protection features such as over-voltage, over-current, short-circuit, and over-temperature to prevent damage to your devices or the power adapter.
Energy-efficient and eco-friendly: Wall-mounted power adapters comply with various energy efficiencies standards such as Level VI in the US, ErP in the EU, and MEPS in Australia. These standards require the power adapters to have low standby power consumption and high conversion efficiency, which can save energy and reduce carbon emissions.
Interchangeable and universal input: Wall-mounted power adapters can have fixed or interchangeable AC plugs that fit different wall outlets in different regions. They can also accept a wide range of input voltage from 90 VAC to 264 VAC, which means they can work in most countries worldwide.
Benefits of Wall-Mounted Power Adapters
Wall-mounted power adapters offer several benefits for users and manufacturers of electronic devices. Some of these benefits are:

Cost-effective and easy to use: Wall-mounted power adapters are relatively inexpensive and easy to use compared to other types of power supplies. They do not require installation or wiring and can be plugged in and unplugged quickly and safely.
Flexible and versatile: Wall-mounted power adapters can provide different output voltage and current levels to suit different devices and applications. They can also be customized with different DC output connectors and cord lengths to match your device's specifications.
Safe and compliant: Various international and domestic authorities test and certify wall-mounted power adapters to ensure their safety and quality. They meet the requirements of ISO9001 quality management system certification; China CCC certification; EU CB certification, CE certification, GS certification, RoHS certification; US FCC certification, ETL certification, UL certification; Australia C-tick certification; Korea KC certification, KCC certification and so on.
How to Choose a Wall-Mounted Power Adapter
When choosing a wall-mounted power adapter for your device, you need to consider several factors, such as:

Power range: The power range of a wall-mounted power adapter is determined by its output voltage and current. You must choose a power adapter that can provide enough power for your device without exceeding its maximum ratings. For example, if your device requires 12V 2A of power, you need a power adapter to deliver at least 24W (12V x 2A) output power.
AC plug type: The AC plug type of a wall-mounted power adapter depends on the region where you will use it. Choose a power adapter with a compatible AC plug with the wall outlet in your location. For example, if you are in China, you need a power adapter with a Chinese plug type.
DC output connector: The DC output connector of a wall-mounted power adapter connects to your device's input port. Choose a power adapter with a matching DC output connector and your device's input port. For example, if your device has a micro USB input port, you need a power adapter with a micro USB output connector.
Efficiency standard: The efficiency standard of a wall-mounted power adapter indicates its energy performance and environmental impact. You must choose a power adapter that meets or exceeds your region's or market's efficiency standard. For example, if you are in the US, you need a power adapter that complies with Level VI efficiency standards.
Conclusion
Wall-mounted power adapters are common and valuable power supplies for various electronic devices. They have many features and benefits that make them convenient, reliable, energy-efficient, and eco-friendly. When choosing a wall-mounted power adapter for your device, you must consider its power range, AC plug type, DC output connector, and efficiency standard.

If you are looking for high-quality wall-mounted power adapters for your devices or applications, you can check out Oushangmei Technology's products. Oushangmei Technology is a professional manufacturer of switch-mode power adapters, USB chargers, and PD fast-charge power adapters. They have a series of wall-mounted power adapters with power range from 12W to 48W, 5V1A/2A/3A, 9V1A/2A/3A, 12V1A/2A/3A, 24V1A/1.5A, etc. Their products are of high quality and have passed many international and domestic authoritative certifications. You can visit their website or contact them for more information.

WALL MOUNT ADAPTER

Oushangmei Technology., Ltd produces a series of wall-mounted power adapters, ranging from 12W to 48W, with various output voltages and currents, such as 5V/1A/2A/3A, 9V/1A/2A/3A, 12V/1A/2A/3A, 24V/1A/1.5A, etc. Our high-quality products have obtained many authoritative certifications from domestic and international agencies, including ISO9001, 3C, CB, CE, FCC, GS, ETL, UL/cUL, C-tick, KC, KCC, RoHS, and more.

DESKTOP TYPE ADAPTER

Oushangmei Technology supplies a series of desktop-type power adapters, Power rate 6-96W, voltages of 12V & currents from 3-8A. We also have 96W-150W PFC function power adapters with voltages of 12V and currents from 9-12A. We strictly follow the ISO9001 quality management system, and our power adapters work stably and reliably. Our products have passed various certifications, such as CB, 3C, UL, cUL, FCC, PSE, GS-TUV, EMC-CE, LVD-CE, RCM, SAA, C-TICK, S-MARK, E-MARK, ROHS.

Features and Advantages of Desktop Power Adapters and PFC Power Adapters
Desktop power adapters are power devices that convert AC power to DC power, usually used to provide stable DC voltage for various electronic devices. Desktop power adapters are characterized by large sizes but high power, which can meet the needs of high-power devices. Desktop power adapters have two series, one is the ordinary model 36W-96W, 12V/3A/4A/5A/6A/7A/8A, and the second series is the high-power PFC power supply 96W-150W. This article will introduce the features and advantages of desktop and PFC power adapters and how to choose the correct desktop power adapter.

Features of Desktop Power Adapters
Desktop power adapters have the following features:

Efficient and stable output: Desktop power adapters use advanced switching power supply technology, which can convert AC power to constant DC voltage and adjust the output voltage and current through built-in control circuits, ensuring the stability and consistency of output power. Desktop power adapters also have protection functions such as over-voltage, over-current, short-circuit, over-temperature, etc., which can prevent damage to the device or the power supply itself.
Wide input range: Desktop power adapters can accept a wide input voltage range from 90VAC to 264VAC, which means they can be used in most countries and regions without worrying about input voltage mismatch.
Diverse output specifications: Desktop power adapters can provide different output voltage and current levels to suit different devices and applications. For example, the first series is 36W-96W, 12V/3A/4A/5A/6A/7A/8A, the second series is 96W-150W PFC power supply, 12V9A/10A/11A/12A. Depending on device specifications, desktop power adapters can also be customized with different DC output connectors and cord lengths.
Comply with safety standards: Desktop power adapters have passed various international and domestic authoritative certifications to ensure their safety and quality. They comply with ISO9001:2015 quality management system certification; China CCC certification; EU CB certification, CE certification, GS certification, RoHS certification; US FCC certification, ETL certification, UL certification; Australia C-tick certification; Korea KC certification, KCC certification, and so on.
Features of PFC Power Adapters
PFC (Power Factor Correction) is a technology that improves AC input power utilization efficiency. The power factor is the ratio of input adequate power to input apparent power, reflecting how much AC input power can be converted into DC output power. Ideally, the power factor should be 1, but due to the presence of reactive power and harmonic components in the AC input power, the power factor is lower than 1. Low power factor causes the following problems:

Increase line losses: Low power factor means that apparent input power is higher than adequate power, which causes more invalid power and harmonic components in the line, resulting in increased line losses and heating.
Reduce system capacity: Low power factor means that apparent input power is higher than adequate power, which causes system capacity to be occupied by invalid power, thereby reducing system capacity.
Affect power quality: Low power factor means that apparent input power is higher than adequate power, which causes the supplier to provide more apparent power to meet user demand, thereby increasing supplier cost and burden. At the same time, invalid power and harmonic components also cause interference and pollution to other users.

To solve the problem of low power factor, PFC technology is introduced into desktop power adapters. PFC technology improves the power factor by adding a switching converter at the AC input end to adjust the input current waveform, making it in or close to phase with the input voltage waveform. PFC technology has two types:

Passive PFC: Passive PFC improves PF by filtering out harmonic components with a passive filter at the AC input end and compensating for the invalid inductive or capacitive reactive power required by invalid inductive or capacitive loads. Passive PFC is usually used in low-power applications, but its effect is limited.
Active PFC: Active PFC improves PF by adding a switching converter at the AC input end to adjust the input current waveform, and tracking the input voltage waveform with feedback control, making it in phase or close to phase with it. Active PFC is usually used in high-power applications, and its effect is best.
PFC technology can bring the following benefits:

Save energy: Improve AC input power utilization efficiency, and reduce line losses and heating.
Increase system capacity: Reduce invalid power occupying system capacity.
Improve power quality: Reduce interference and pollution to suppliers and other users.
Comply with environmental requirements: Many countries and regions have strict regulations on the minimum power factor or full harmonic content of products. For example, the EU requires products to comply with the EN61000-3-2 standard, with a minimum practical value of 0.9 or a minimum average of 0.95.
How to Choose Desktop Power Adapters
When choosing desktop power adapters, you need to consider the following factors:

Output specifications: Output specifications include output voltage, output current, output connector, and other parameters. You must choose output specifications that match or are compatible with your device. For example, if your device needs 12V 5A DC power, choose a desktop power adapter that can provide at least 60W (12V x 5A) output power.
Input range refers to the AC input voltage range that desktop power adapters can accept. It would be best to choose a desktop power adapter that can adapt to different regions and countries’ input voltage. For example, if you want to use it in China, you must choose a desktop power adapter that accepts 220VAC input voltage.
PFC function refers to whether desktop power adapters have a power factor correction function. You need to choose whether you need PFC function desktop power adapters according to your device’s power and the environmental requirements of your region. For example, suppose your device’s power is high, or your region has strict regulations on the minimum power factor of products. In that case, you must choose desktop power adapters with the PFC functions.
Safety certification: Safety certification refers to whether desktop power adapters have passed relevant safety standards certification of countries and regions. It would be best if you chose desktop power adapters with corresponding safety certifications according to your device’s use and the legal regulations of your region. For example, you must choose desktop power adapters with CE certification to sell or use in the EU.
Conclusion
Desktop power adapters are helpful to power devices with features such as efficient and stable output, wide input range, diverse output specifications, and compliance with safety standards. PFC technology improves AC input power utilization efficiency by saving energy, increasing system capacity, improving power quality, and complying with environmental requirements. When choosing desktop power adapters, you must consider factors such as output specifications, input range, PFC function, safety certification, etc.

If you are looking for high-quality desktop or PFC power adapters, you can check out Oushangmei Technology’s products. Oushangmei Technology is a professional switching power adapter manufacturer specializing in the development, design, production, sales, and technical consulting services of switching power adapters, USB chargers, and PD fast-charging power adapters. They supply a series of desktop power adapters: The first series is 36W-96W,12V/3A/4A/5A/6A/7A/8A, the second series is 96W-150W PFC power supply, 12V9A/10A/11A/12A. Their products are in the mid-to-high-end power adapters’ design concept and production standards, following the ISO9001:2015 quality management system framework. Their power adapter products are stable and reliable, anti-interference and electromagnetic compatibility comply with international electrical standards, energy-saving, and environmentally friendly green products. Their products have passed CB, CCC, UL, CUL, FCC, PSE, GS-TUV, EMC-CE, LVD-CE, RCM, SAA, C-TICK, S-MARK, E-MARK, ROHS, CEC, DOE, ERP, and other global multi-country safety certifications. You can visit their website or contact them for more information.

One Platform. Limitless Potential.

For more than 11 years, Oushangmei Technology Co.,Ltd has been a trusted global partner for businesses looking to grow online.

An Introduction to Power Supply Safety Certification  What is power supply safety certification?   Power supply safety certification is the process of testing and evaluating the safety performance, environmental adaptability, reliability, and other aspects of power supply products to ensure that they meet relevant laws, regulations, and technical standards.   Power supply safety certification can improve the quality and reputation of products, reduce production costs and risks, and increase market competitiveness and customer satisfaction.   Why do we need power supply safety certification?   Power supply safety certification can protect consumers and users from harm or loss caused by inferior or dangerous products.   Power supply safety certification can protect manufacturers and distributors from economic loss or legal liability caused by unqualified or illegal products.   Power supply safety certification can protect the environment from the damage or impact caused by toxic or polluting substances.   Which countries or regions require power supply safety certification?   Different countries or regions have different requirements for power supply safety certification.   Suppose you want to export or import power supply products to a certain country or region. In that case, you must understand and comply with its relevant laws, regulations, and technical standards.   Some common countries or regions and their corresponding power supply safety certifications are as follows: There are many different certifications worldwide, all for ensuring the quality and safety of power supply products and complying with the laws and regulations of different countries.   Different countries or regions have different certification requirements.   If you want to export power adapters to foreign countries, you need to understand the certification standards of the target market and pass the corresponding testing and approval.   Below are some common power supply safety certifications that I know of and their brief introductions:  3C certification: This is a mandatory product certification system implemented by the Chinese government, which covers the aspects of safety, electromagnetic compatibility, and fire protection of electronic and electrical equipment.   Any power supply products sold in the Chinese market must pass 3C certification.   CE certification: This is a mandatory certification mark implemented by the European Union, which indicates that the product meets the requirements of the European Union for safety, health, environmental protection, and consumer protection.   Any power supply products sold in the European market must have the CE mark.   FCC certification: This is a certification on electromagnetic interference implemented by the Federal Communications Commission of the United States, which requires that products do not cause interference or be interfered with by other devices when transmitting and receiving radio frequencies.   Any power supply products sold in the US market must pass FCC certification.   UL certification: This is a safety test and identification implemented by the Underwriters Laboratories of the United States, one of the world's strictest certifications.   It has relevant restrictions on the structure, materials, testing instruments, and methods of products.   Any power supply products sold in the US market are recommended to pass UL certification.   RoHS certification: This is a directive on restricting the use of certain hazardous substances in electronic and electrical equipment implemented by the European Union, which aims to reduce the amount of lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls and polybrominated diphenyl ethers in products.   Any power supply products sold in the European market must comply with the RoHS directive.   In addition to these certifications, some other certifications are unique to some countries or regions, such as PSE certification: This is a mandatory product safety regulation implemented by Japan, requiring all electrical products entering the Japanese market to pass PSE testing and have PSE marks.   KC certification: This is a mandatory product safety regulation implemented by South Korea, which requires that all electrical products entering the South Korean market must pass KC testing and have a KC mark.   BSMI certification: This is a mandatory product safety regulation implemented by Taiwan, which requires that all electrical products entering the Taiwanese market must pass BSMI testing and have a BSMI mark.   SAA certification: This is a voluntary product safety regulation implemented by Australia, which requires that all electrical products entering the Australian market are recommended to pass SAA testing and have an SAA mark.   How to conduct power supply safety certification Generally speaking, conducting power supply safety certification requires the following steps:  Choose a suitable certification body and testing laboratory.   Submit the application form and relevant documents.   Conduct sample testing and evaluation.   Obtain the report and certificate.   Attach the corresponding logo.   Maintain and update the certification status.   The specific details may vary depending on different institutions and standards.   You need to consult professionals or refer to relevant websites.   Conclusion This article briefly introduced power supply safety certification, why we need it, which countries or regions require it, and how to conduct it.   Power supply safety certification is an important way to ensure the quality and safety of power supply products and comply with the laws and regulations of different markets.

INTERNATIONAL CERTIFICATION

Our products have obtained authoritative certifications from domestic and international agencies, including ISO9001, 3C, CB, CE, GS, RoHS, FCC, ETL, UL/cUL, C-tick, KC & KCC.

ADVANCED EQUIPMENT

Our production capacity can reach 90,000 pieces per month. Our workshop has various devices, such as a plug-in line, wave soldering, power supply comprehensive testing line, fully automatic aging room, laser engraving machine, high-performance power analyzer, and oscilloscope.

The Production Process of Power Adapter A power adapter is a product of modern power electronics technology, which uses the control of the switch tube to turn on and off the time ratio to maintain a stable output voltage. With the progress of power electronics technology, power adapter technology also advances with the times, with the advantages of high efficiency, low power consumption, small size, lightweight, etc., representing the development direction of regulated power supply. In addition to product design and development, production and manufacturing are important links to ensure the quality of power adapters. The completed power adapters can achieve the expected performance and effects only by adopting rigorous production processes and standards. The production process of the power adapter can be roughly divided into the following steps: pre-production preparation, coil making, component soldering and assembly, cleaning, inspection, potting, casing, Marking, and packaging. Each step has its standards and requirements, which need to be strictly followed by the production staff. The following is a brief introduction to each step and its key points. Pre-production preparation: Preparing in advance according to the relevant technical documents is necessary to ensure smooth and efficient production and manufacturing. This mainly includes the preparation of components, raw materials, and required equipment; the design documents, process documents, test methods, production and manufacturing operation rules, and other materials of the power adapter; some components need to be assembled in advance and their performance tested. Coil making Strictly speaking, coil making is also part of pre-production preparation, but magnetic components are critical for power adapters and directly affect product performance. Therefore, this item is listed separately, and the operators must have a magnetic component qualification certificate. Before winding the coil, determine the winding and performance parameters. According to the standard of magnetic components, determine the material list. According to the performance parameters of magnetic component winding, select enameled wire and skeleton. Cut out the size of each winding wire. Fix the skeleton on the winding machine and do a good job of winding. Special attention should be paid to: the wound coil should be tight and flat; with short inlet wire and long outlet wire; primary first and secondary later; if there are two windings in the secondary when coil turns are the same, wind at the same time; when coil turns are different, wind separately. Finally, twist each winding’s inlet and outlet wires 3-5 turns to prevent loosening. Then take down the skeleton from the winding machine. Arrange enameled wire. Scrape wire and tin. Component soldering and assembly Standard component soldering is a basic guarantee for product quality. It stipulates that there should be no missing soldering for components. Each solder joint should be soldered firmly and in good contact. There should be no wrong soldering components. In the soldering process, it is necessary to: confirm the accuracy of raw materials; preheat the soldering iron sufficiently. Hold the soldering iron in one hand and tweezers or wire in the other; solder in order. Inspect each component after soldering, from large to small or left to right. Check whether it is firm or not. Whether contact is good or not. There should be no offset. Falling off. False welding. Solder joints should be smooth and round. There should be no burrs or other bad phenomena; check for missing welding or short circuit caused by solder flow; or chips. Capacitor. Resistance should be close to the surface of the board. Cleaning refers to cleaning PCB with an ultrasonic cleaning machine to ensure no excess solder paste or impurities are inside the product. Clean twice as appropriate. During operation, ensure that cleaning equipment is installed stably. Pour water and washboard water into the machine according to the standard process. Clean for 1 minute. After cleaning. Dry at room temperature or dry in high temperature drying oven. Check cleaned PCB for false welding. Without welding. Short circuit etc. Inspection is a necessary process in any production process. It is also the last quality assurance before product shipment. Power adapter inspection mainly includes routine appearance inspection. Performance test and high-low temperature test. The routine test is to inspect the packaging and appearance of the power adapter. There should be no damage. Scratches. Dirt. Pin skew etc.; place power adapter under 1.5-10 times microscope. Ensure that the plating has no peeling or blistering. Lead has no fracture or corrosion; use a vernier caliper to measure physical size. According to the customer agreement stipulation. Test input-output parameters. When loading transient or input voltage transient occurs. Check whether output meets requirements. The high-temperature test is to place the power adapter in high temperature drying oven for baking for more than 2H, then quickly take out the product for performance test; the low-temperature test is to place the power adapter in a low-temperature storage box for freezing for more than 2H then quickly take out product for performance test. Potting Potting means slowly injecting refrigerated colloid into body colloid should not exceed components surface should be smooth and flat After potting products are placed parallel on tray at room temperature solidify for more than 48H After colloid solidifies completely can proceed next step operation After product is sealed into one shock resistance performance is improved ensuring product quality Casing Casing uses parallel seam welding machine First place product base on fixture of parallel seam welding machine then take cover plate place on product base confirm cover plate direction According to size of shell to be welded input corresponding shell length width left right electrode height on welding parameter interface after setting all parameters do spot welding work after spot welding work check whether cover plate base are spot welded together then do seam welding work After welding work check welding surface under 20 40 times microscope Welding should meet following requirements: welding surface should be well welded no pores cracks unsealed cover plate deviation other bad phenomena; welding surface should be flat no unevenness wheel marks; welding surface should not be overburned scratched Marking Marking is last step before product shipment mark product make product model pin function easy identify avoid wrong connection misuse Marking uses laser engraving machine input corresponding information on computer control engraving machine engrave information on shell.
Oushangmei Technology & Power Adapters  Oushangmei Technology Power Co., Ltd. is a high-tech enterprise specializing in research, development, production, sales, and service of power products. It was established in 2008 and is located in Bao'an District, Shenzhen. The company has an experienced, skilled, and innovative R&D team and some advanced production equipment, testing instruments, and management systems committed to providing customers with high-quality, efficient, and reliable power solutions. # OUSM Power Technology Co., Ltd.: A Professional Power Adapter Manufacturer  ## Why choose OUSM Power Technology Co., Ltd.? Choosing OUSM Power Technology Co., Ltd., you can enjoy the following advantages:  - Level 6 energy efficiency: Comply with the latest energy efficiency standards, save energy and protect the environment, and reduce operating costs. - Adapt to the world: It can adapt to 100-240V AC input voltage and is suitable worldwide. - Military quality: Use high-quality electronic components and strict process procedures to ensure the durability and reliability of the product. - Beautiful appearance: The shell is made of fire-resistant material, with a simple and elegant design that conforms to ergonomic principles. - Professional R&D team: The company has a five-person professional R&D team covering circuit design, safety assessment, appearance design, structure design, technical management, and other talents. It can plan and design according to customers' functional requirements and provide customers with tailor-made products with reasonable configuration and high-cost performance. - Advanced production equipment: The company has a complete production line and testing equipment. The production workshop has plug-in lines, wave soldering, comprehensive power test lines, fully automatic aging rooms, laser engraving machines, high-performance power analyzers, oscilloscopes, and other equipment. Create a high-quality power adapter manufacturer. - Perfect after-sales service: The company provides a one-year warranty and lifetime maintenance service. We will respond and solve any quality or usage problems in time to make customers worry-free. Power adapters convert alternating current into low-voltage direct current, widely used in various small portable electronic devices and appliances, such as mobile phones, laptops, routers, cameras, etc. The performance of power adapters mainly depends on their output stability, efficiency, and safety, which directly affect the devices' normal operation and service life. Oushangmei Technology is a professional company that produces and sells high-quality power adapters. Its products cover various specifications and power levels of AC output and DC output power adapters, which can meet the needs of different devices and occasions. Oushangmei Technology power adapters have the following advantages:  Energy-efficient: Oushangmei Technology power adapters use advanced switching power supply technology, which can effectively reduce power consumption and heat generation, improve conversion efficiency, and meet the national energy-saving standards. Stable and reliable: Oushangmei Technology power adapters use high-quality transformers, capacitors, control chips, and other components, which have been strictly tested and inspected to ensure the stability of output voltage and current and prevent overvoltage, overcurrent, short circuit, and other faults. Safe and environmentally friendly: Oushangmei Technology power adapters have passed the national safety certification, comply with CE, FCC, and other international standards, have good anti-interference and lightning protection capabilities, and use lead-free, mercury-free, and other environmentally friendly materials to reduce environmental pollution. Personalized customization: Oushangmei Technology power adapters provide customers with a variety of interface and plug options, as well as different colors and shapes of design, to meet the personalized needs of customers. To introduce the brand and products of Oushangmei Technology power adapters, we can provide some information about its brand background, product series, features, and advantages. Brand background: Oushangmei Technology was established 2010 as a power adapter manufacturer. It has a strong R&D team and a modern production base. It has obtained many patents and certifications in power supply technology. It has a good reputation in the domestic and overseas markets. Product series: Oushangmei Technology has a variety of product series, such as AC/DC power adapters, DC/DC power adapters, car chargers, USB chargers, LED drivers, etc. The output voltage ranges from 3V to 48V, and the output power ranges from 5W to 300W. The products can be customized according to different specifications and requirements. The company adheres to the business philosophy of "integrity, professionalism, innovation and win-win" and insists on the service tenet of "customer-centered, quality-oriented, service-oriented," constantly pursuing technological innovation and product upgrading, providing customers with satisfactory power products and services. The company is willing to cooperate with customers to develop together and create brilliance!   If you are looking for a reliable and professional power adapter manufacturer, choose Oushangmei Technology Co., Ltd. They have over ten years of industry experience, a strong R&D team, and a large production capacity. They can provide customized, cost-effective power solutions that suit your needs and expectations. Contact them today and get a free quote for your power project.

PROFESSIONAL R & D TEAM

OUSM Technology Co., Ltd. has a professional R&D team covering various aspects such as circuit design, safety evaluation, appearance design, structure design, and technical management. We provide customers with tailor-made products that have reasonable configuration and cost-effectiveness.

INTIMATE SERVICE

We offer three years of guarantee for our products. Our excellent team, advanced technology, scientific management, and pragmatic and enterprising spirit are the actual core competencies of OUSM Technology Co., Ltd. We look forward to working with you for mutual benefit and development. Let us create a bright future together!

As a frequently used electronic device in our daily life, the power adapter is mainly used to adjust the power voltage and current to a suitable range for various electronic devices. As a professional company specializing in power adapters, Oushangmei Technology has always been trusted by consumers for its product quality and performance. Generally speaking, alternating current is a sinusoidal waveform of voltage and current that changes with time. Alternating current has many advantages, such as changing its size through a transformer, transmitting over long distances with low loss through transmission lines, using engines or generators easily generate it, and so on. Therefore, alternating current is the most common form of electric energy daily. However, not all devices can directly use alternating current. Some devices need to use a constant or stable direct current to work. Direct current is a constant or square waveform of voltage and current that does not change with time. Direct current has many advantages, such as it can be stored and released by batteries, switches can control it, and it can change its size by rectifier bridge or switch mode regulator. Therefore, direct current is the most common form of energy used daily. The working principle of a power adapter is to use power electronic technology to convert alternating current to direct current. Power electronic technology is a technology that uses semiconductor devices, such as transistors, diodes, thyristors, and so on, to control and convert electric energy. The main components of the power adapter are as follows:  Input filter: used to filter out the noise and interference in the input alternating current and protect the power adapter and the subsequent devices. Rectifier bridge: rectifying the input alternating current into pulsed direct current, providing direct current power for the subsequent devices. Voltage feedback: used to detect the size and stability of the direct output voltage, connected with the control chip, adjust the switching frequency and duty cycle of the switch tube, and achieve the stability and regulation of the direct output voltage. Control chip: used to control the switching state of the switch tube, according to the change of input alternating current and the demand of direct output current, to achieve high efficiency and low loss AC-DC conversion. Switch tube: used to switch the pulsed direct current into high-frequency alternating current, improve the working efficiency and reduce the size and weight of the transformer. Transformer: used to reduce or increase the high frequency alternating current, according to different output voltage requirements, design different turns ratio and the number of turns. Output rectifier filter: used to rectify the transformer output high-frequency alternating current into smooth direct current and remove the high-frequency ripple by filter capacitor, improving the quality of direct output current. Output protection: used to protect the output direct circuit and load device and prevent overload, overvoltage, short circuits, and other faults. The production process of the power adapter can be roughly divided into the following steps:  Choose a suitable power adapter scheme according to different output voltage, current, power, efficiency, safety, and other requirements; design a circuit diagram and schematic diagram. Select suitable components and materials. Make the PCB board of the power adapter, convert the circuit diagram into a PCB drawing, then make the PCB board by cutting, drilling, copper plating, etching, and other processes. Assemble the components of the power adapter, solder resistors, capacitors, diodes, transistors, and other components according to the position of the schematic diagram on the PCB board and form the main board of the power adapter. Test the performance of the power adapter, use special test instruments and software, test and debug the output voltage, current, ripple, efficiency, temperature rise, protection function, and so on of the power adapter, and ensure that they meet the design requirements and standard specifications. Encapsulate the shell of the power adapter, put the tested main board into a plastic or metal shell, fix the wiring and plug, then encapsulate and label, and complete the production of the power adapter. High efficiency: Oushangmei Technology uses advanced switch mode regulation technology, which makes its products have an efficiency of more than 90%, much higher than the traditional linear regulation technology. Low loss: Oushangmei Technology uses high-quality components and materials, which makes its products have a loss reduction of more than 50%, saving energy consumption. High stability: Oushangmei Technology uses precise control chips and feedback circuits, which make its products keep the output voltage and current in a constant and stable range, preventing fluctuations and interference. High safety: Oushangmei Technology uses multiple protection functions, which makes its products automatically disconnect the output in case of overload, overvoltage, short circuit, overtemperature, and other abnormal situations, protecting the power adapter and load device. High quality: Oushangmei Technology has passed the ISO9001 quality management system certification, and its products have passed the CE, FCC, ROHS, and other international standard certifications, complying with the safety regulations of various countries and regions. High-cost performance: Oushangmei Technology has its own R&D team and production base, which can customize different power adapter schemes according to customer needs, providing high-quality and low-cost products. Oushangmei Technology power adapter is your ideal choice in various application scenarios. It can provide efficient, stable, safe, and energy-saving power solutions, making your devices more convenient, comfortable, and intelligent. Welcome to Oushangmei Technology's official website to learn more about product information and service support. Background  Oushangmei Technology was founded in 2012 and is headquartered in Shenzhen. The company has a high-quality R&D team and an excellent management team dedicated to providing customers with high-quality, high-performance power adapter products and perfect after-sales service. After years of continuous development, Oushangmei Technology has become one of the well-known brands in the power adapter field, and its products are sold worldwide. Product Series  Oushangmei Technology's product series are diverse, including laptop power adapters, LED strip power adapters, and wireless chargers. Among them, laptop power adapters are one of Oushangmei Technology's main products, covering most of the laptop power adapter specifications to meet the needs of different users. In addition, Oushangmei Technology has also launched multiple smart, fast wireless chargers that support multiple fast charging protocols, making users' charging experience more convenient. Features and Advantages  Oushangmei Technology's power adapter products have the following features and advantages:  High-quality materials: Oushangmei Technology's power adapter products are made of high-quality materials, ensuring product durability and reliability. Strong stability: Oushangmei Technology's power adapters have a very stable voltage and current output, effectively protecting electronic devices and extending their service life. Safety and reliability: Oushangmei Technology's power adapter products have passed multiple international certifications, such as CE, FCC, ROHS, etc., which meet global safety standards and ensure the user's safety during use. Multiple protection measures: Oushangmei Technology's power adapter products have built-in multiple protection measures, such as overvoltage protection, overcurrent protection, short circuit protection, etc., ensuring the safety of users' devices. Perfect after-sales service: Oushangmei Technology's after-sales service is thoughtful, providing customers with comprehensive technical support and maintenance services, ensuring that users receive timely and effective assistance. In addition, Oushangmei Technology also pays attention to the innovation and humanization of product design. The company's product appearance design is simple and generous, and the operation is simple and convenient, providing users with a more pleasant user experience. In summary, Oushangmei Technology, a professional company specializing in producing power adapters, has a complete product series, reliable quality, stable performance, and many advantages and features, making it one of the preferred brands for consumers to choose power adapter products. At the same time, the company's perfect after-sales service also provides users with better use protection. We believe that Oushangmei Technology will continue to innovate and provide users with higher-quality power adapter products and services in future development.

2012

Year of Establishment

150+

Employees

10+

R&D Engineers

1500+

Factory Floor Area

50+

Models

Our WorkShop

The power adapter market also faces some challenges and opportunities, mainly including the following points:

The fierce market competition and profit decline. Due to the relatively low threshold of the power adapter market, there are a lot of low-end products and low-price competition in the market, which brings massive pressure on regular manufacturers. At the same time, due to the rising costs of raw materials, labor, transportation, etc., and the impact of exchange rates, tariffs, and other factors, the profit margin of power adapters is also shrinking. Therefore, power adapter manufacturers must constantly improve product quality and performance, enhance brand image and reputation, and develop new markets and customers to cope with market competition and profit decline.

The impact and recovery of novel coronavirus epidemic. Since 2020, the novel coronavirus epidemic has caused a considerable impact and loss to the global economy and society. The power adapter market has also been seriously affected due to the obstruction of production, transportation, sales, and other links, resulting in the imbalance of supply and demand of power adapters, market demand decline, inventory backlog, order cancellation or delay, and other problems. With the governments of various countries taking a series of measures to control the epidemic and launching some policies and plans to stimulate economic recovery, the power adapter market is also gradually recovering and growing. Due to the increase in demand for remote work, online education, network entertainment, and other applications, the demand for mobile devices and related accessories also increases, bringing new opportunities for the power adapter market.

Ac dc power supply is a power device that converts alternating current into direct current. It has the characteristics of a wide input voltage range, stable output voltage, high efficiency, small volume, and lightweight. Ac dc power supply is widely used in various devices that need a direct current power supply, such as LED lighting, security monitoring, medical equipment, industrial control, and other fields.

USB charger adapter is a power device that converts alternating current into 5V direct current and outputs it through a USB interface. It can provide power or charge for various devices that support USB charging, such as smartphones, tablets, digital cameras, MP3/MP4, etc. USB charger adapter has the characteristics of portability, universality, fastness, and so on. It is one of the necessary accessories for modern people to travel.

A Poe injector is a power device that converts alternating current into direct current and outputs it through a network cable. It also adds an Ethernet data signal to the network cable. It can provide power and data transmission for devices supporting power functions, such as network cameras, wireless routers, IP phones, etc. POE injector has the characteristics of simplicity, efficiency, and safety. It is one of the standard accessories in network engineering.

A power adapter is a device that converts alternating current to direct current, which can provide stable power for various electronic devices. The following factors mainly influence the market demand for power adapters:

- The popularity and innovation of electronic devices. With the development of technology, more and more electronic devices enter the market, such as laptops, mobile phones, tablets, smartwatches, etc. These devices require different voltages and currents, so they need matching power adapters to charge or power them. At the same time, the innovation of electronic devices also brings new demands for power adapters, such as fast charging, wireless charging, multifunctional charging, etc.
- The awareness of energy saving and environmental protection. With the increasing concern for environmental issues, energy saving, and environmental protection have become the common goals of consumers and manufacturers. Therefore, the design and manufacture of power adapters also need to consider the aspects of energy efficiency, materials, waste disposal, etc., to reduce energy consumption and pollutant emissions. For example, the European Union has set a series of energy efficiency standards, requiring power adapters to achieve a certain level of energy efficiency in both no-load and load conditions.
- The trend of globalization and standardization. With globalization, people's travel and communication have become more frequent, so they need a power adapter that can adapt to different countries' and regions' power grids and sockets. Currently, there are various types of alternating current standards and plug types in the world, which cause inconvenience to users. Therefore, some power adapters adopt universal input or variable input design, which can automatically adjust the input voltage and are equipped with different types of plug converters to meet the needs of different regions.

According to the above analysis, the market demand for power adapters will maintain stable growth in the next few years, mainly focusing on high-end, intelligent, energy-saving, and universal aspects. Oushangmei Technology is a professional manufacturer and seller of various high-quality power adapters. Its products cover various fields, such as laptops, mobile phones, tablets, etc., and have the following advantages:

- Efficient and safe. Oushangmei Technology's power adapters use advanced switching power supply technology and protection measures, which can effectively improve energy efficiency, reduce heat generation and prevent overvoltage, overcurrent, overtemperature, short circuits, and other faults.
- Multifunctional and compatible. Oushangmei Technology's power adapters have various output specifications and interface types, which can meet the needs of different devices and support fast charging, wireless charging, and other functions. At the same time, Oushangmei Technology's power adapters also have the characteristics of universal input or variable input, which can adapt to different countries' and regions' power grids and sockets.
- Environmental and durable. Oushangmei Technology's power adapters use environmentally friendly materials and processes, comply with the environmental standards of various countries and regions, and have passed strict quality testing and certification, ensuring the performance and life of the products.
- Beautiful and portable. Oushangmei Technology's power adapters adopt a simple and fashionable appearance design, with various colors and shapes, which can match different devices and occasions. At the same time, Oushangmei Technology's power adapters also have the characteristics of lightness and compactness, which are convenient for users to carry and use.

In summary, power adapters are an essential accessory for electronic devices, whose market demand is influenced by various factors, showing stable growth and diversification characteristics. Oushangmei Technology is a professional power adapter manufacturer whose products have the advantages of efficiency, safety, multifunctionality, compatibility, environmental protection, durability, beauty, and portability. They can meet the needs of different users and have a specific advantage in the market. Oushangmei Technology will continue to adhere to the concept of being "quality-oriented, innovation-driven," constantly research and improve its products, and provide better power solutions for users.
The Function and Application of Power Adapters

In our daily life and work, many electronic products and devices need power adapters to provide suitable electric energy. So, what is a power adapter? What is its function? Moreover, what are its application scenarios? This article will briefly introduce these questions.

A power adapter is a device that can convert alternating current into direct current. It can provide suitable electric energy for different voltage requirements of electronic products and devices. Many kinds of electronic products and devices use power adapters, such as mobile phones, tablets, laptops, liquid crystal displays, speakers, cameras, printers, scanners, routers, set-top boxes, security cameras, light strips, massagers, fans, air conditioners, refrigerators, washing machines and so on. In order to ensure the safety and stability of these products and devices, we need to choose the appropriate power adapter according to their working voltage.

What is the function of the power adapter?

The function of the power adapter is to provide suitable electric energy for the different voltage requirements of electronic products and devices. Because the household alternating current is 220V, and most electronic products usually need a power supply voltage of about 5V to 20V, using the household alternating current directly will cause damage or failure to the electronic products and devices. Therefore, it is necessary to use a power adapter to convert alternating current into direct current and adjust the output voltage and current according to different loads to ensure safe and stable operation.

What are the application scenarios of the power adapter?

There are many application scenarios for the power adapter. Here are some common examples:

Portable devices such as mobile phones, tablets, laptops, etc.: These devices need to charge to store electric energy, and charging requires using a power adapter to convert alternating current into direct current and output suitable voltage and current according to different device charging specifications. For example, mobile phones generally use 5V1A or 5V2A chargers, while laptops need 19V or 20V chargers.
External devices such as liquid crystal displays, speakers, cameras, etc.: These devices need to connect to the host or other devices through external cables and need to use power adapters to provide the required direct current. For example, liquid crystal displays generally use 12V or 24V adapters, while speakers may need 9V or 18V adapters.
Office equipment such as printers, scanners, routers, etc.: These devices must communicate with computers or other devices through network or USB interfaces and use power adapters to provide the required direct current. For example, printers generally use 24V or 32V adapters, while routers may need 5V or 12V adapters.
Home devices such as set-top boxes, security cameras, light strips, etc.: These devices must receive or send information through signal lines or wireless methods and use power adapters to provide the required direct current. For example, set-top boxes generally use 12V or 15V adapters, while security cameras may need 5V or 9V adapters.
Living devices such as massagers, fans, air conditioners, etc.: These devices need to control functions through buttons or remote controllers and use power adapters to provide the required direct current. For example, massagers generally use 12V or 24V adapters, while fans may need 5V or 9V adapters.
The above briefly introduces the function and application of power adapters. We hope it will help you. If you want to know more about power adapters, please continue to follow us.
Oushangmei Technology Power Supply Co., Ltd. is a professional enterprise engaged in the research, development, production, and sales of power adapters. The company's main products include laptop power adapters, mobile phone chargers, LED driver power supplies, medical power supplies, and other types widely used in IT, communications, home appliances, LED lighting, medical and other fields. Since its establishment, the company has always adhered to the business philosophy of quality as the core, technology as the foundation, market-oriented and customer-centric. It has been highly trusted and praised by customers. The company mainly produces various specifications of power adapters, including ac dc power supplies, USB charger adapters, PoE injectors, type chargers, etc., which are widely used in communication, network, security, medical, industrial control, consumer electronics, and other fields. The company's products have passed many domestic and foreign certifications, such as cUL, Bis, SAA, KC, KCC, CCC, CE, UL, FCC, RoHS, etc... They are exported to many countries and regions such as Europe, America, Asia, and Africa, and have won the trust and praise of customers. Oushangmei Technology Power Co., Ltd. produces ac dc power supply products with various specifications and models to choose from, meeting different voltage and current requirements, such as 5V, 9V, 12V, 24V, etc., and 0.5A, 1A, 2A, 3A, etc. Oushangmei Technology Power Co., Ltd.'s ac dc power supply products have the following performance advantages: High efficiency and energy saving. Using high-frequency switching technology and synchronous rectification technology, effectively improving the efficiency of power conversion, reducing the loss and heat of power supply, saving energy consumption, and meeting the EU energy efficiency standards. High stability and reliability. Using precision control chips and high-quality components, ensuring the accuracy and stability of output voltage, resisting the influence of grid fluctuation and load change, and improving the life and safety of the power supply. High compatibility and flexibility. Using standard DC plug and cable, suitable for various device interfaces, convenient for users to use and replace. At the same time, according to customer needs, different specifications and models can also be customized to meet personalized needs. High safety and environmental protection. Using multiple protection functions, such as over-voltage protection and over-current protection, Received message. High safety and environmental protection. Using multiple protection functions, such as over-voltage protection, over-current protection, short-circuit protection, etc., effectively prevents damage to the power supply and equipment, ensuring the safety of users. At the same time, using lead-free, mercury-free, halogen-free, and other environmental materials, meeting RoHS and other environmental standards, reducing environmental pollution. OUSM company values the importance of environmental protection and sustainability, and we are committed to producing environmentally friendly products. All of our products meet the ROHS environmental protection requirements, and we are continuously improving our production process to minimize waste and reduce environmental impact. We also prioritize customer satisfaction. Our sales team is professional, knowledgeable, and always ready to provide timely and effective customer service. We understand the importance of communication and strive to establish long-term and stable relationships with our customers through trust, mutual understanding, and respect. Shenzhen Oushangmei Power Technology Co., Ltd. is dedicated to providing high-quality power supply products and services to customers worldwide. We are committed to innovation and continuous improvement and will continue to work towards becoming a leading global supplier in the power supply industry.
Oushangmei Technology: A Leading Power Adapter Manufacturer with Premium Certifications

Introduction: Oushangmei Technology, a renowned power adapter manufacturer, stands out in the industry for its diverse range of power adapters, capable of providing various voltages, currents, and power outputs. With a solid commitment to quality and reliability, Oushangmei Technology ensures that its power adapters undergo rigorous testing and meet renowned certifications such as CE, FCC, UL, SAA, and more. This article delves into the exceptional offerings of Oushangmei Technology, highlighting its comprehensive range of power adapters, the significance of certifications, and the advantages of choosing their products for powering electronic devices.

I. Oushangmei Technology: Leading the Industry

A. Company Overview: Oushangmei Technology has established itself as a prominent player in the power adapter manufacturing sector. With years of experience and expertise, the company has gained a reputation for delivering high-quality power solutions that meet diverse customer requirements.

B. Extensive Product Range: Oushangmei Technology offers various power adapters that cater to various voltage, current, and power output needs. Their product range covers laptops, mobile phones, tablets, gaming consoles, home appliances, and more adapters. Customers can choose different form factors, connector types, and power specifications to suit their devices.

C. Customization Capabilities: Recognizing the unique requirements of different customers, Oushangmei Technology provides customization options for power adapters. Whether modifying voltage and current levels, incorporating specific connectors, or accommodating particular power demands, the company has the expertise to tailor solutions accordingly.

II. Importance of Certifications: 

A. CE Certification: The CE mark is a prominent certification that indicates a product's compliance with European Union safety, health, and environmental protection standards. Oushangmei Technology's power adapters bear the CE mark, assuring customers of their adherence to stringent quality and safety regulations.

B. FCC Certification: FCC certification ensures that electronic devices, including power adapters, meet the electromagnetic compatibility (EMC) standards defined by the Federal Communications Commission (FCC) in the United States. Oushangmei Technology's power adapters pass FCC testing, guaranteeing their electromagnetic compatibility and minimal interference with other devices.

C. UL Certification: Underwriters Laboratories (UL) certification is widely recognized for its stringent safety standards. Oushangmei Technology's power adapters undergo rigorous testing to obtain UL certification, signifying their compliance with electrical safety standards, fire resistance, and protection against electrical hazards.

D. SAA Certification: SAA certification, specifically relevant in Australia and New Zealand, ensures that electrical products, including power adapters, meet the safety and technical standards set by these regions. Oushangmei Technology's SAA-certified power adapters assure customers of their compliance with Australian and New Zealand safety regulations.

E. Other Recognitions: Apart from the mentioned certifications, Oushangmei Technology's power adapters may also carry additional certifications, such as RoHS (Restriction of Hazardous Substances) compliance, ensuring the absence of hazardous materials like lead and mercury.

III. Advantages of Oushangmei Technology's Power Adapters: 

A. Quality and Reliability: Oushangmei Technology prioritizes quality and reliability in every aspect of its power adapters. The company is committed to delivering products that meet stringent industry standards by adhering to renowned certifications. Customers can trust Oushangmei Technology's power adapters for a safe and reliable power supply to their electronic devices.

B. Wide Compatibility: Oushangmei Technology's power adapters are designed to be highly compatible with a wide range of electronic devices. Whether charging smartphones, powering laptops, or driving gaming consoles, their adapters provide the required voltage, current, and power output to ensure optimal device performance.

C. Safety Features: Oushangmei Technology's power adapters prioritize safety. With certifications like CE, FCC, UL, and SAA, their products incorporate built-in protection features against overvoltage, overcurrent, short circuits, and overheating, ensuring devices are safeguarded from potential damage.

D. Energy Efficiency: Oushangmei Technology's power adapters focus on enhancing efficiency and reducing energy waste. By complying with international efficiency standards like ENERGY STAR, their adapters optimize energy conversion, reduce energy consumption, and help users save on electricity bills.

E. Durability and Lifespan: Oushangmei Technology emphasizes durability in its power adapters to withstand rigorous everyday usage. With premium components and robust construction, they offer extended lifespan, reducing the need for frequent replacements and contributing to sustainability.

F. Customer Support and Warranty: Oushangmei Technology places customer satisfaction at the forefront. Alongside top-quality power adapters, they provide excellent customer support to assist users with queries or concerns. Additionally, their products often come with warranties, providing customers with peace of mind and a guarantee of purchase.

Conclusion: 

As a leading power adapter manufacturer, Oushangmei Technology stands out for its high quality, reliability, and prestigious certifications. The company complies with strict safety, quality, and environmental standards by obtaining certifications such as CE, FCC, UL, and SAA. Choosing Oushangmei Technology's power adapters ensures an efficient and reliable power supply for electronic devices, meeting the highest industry benchmarks.

Honorary Qualification & Safety Certificates

FCC Certification and Power Supply

Suppose you want to produce and export power adapters to the United States. In that case, you need to comply with the requirements of the Federal Communications Commission (FCC), which is the authority that regulates the electromagnetic compatibility of electronic products in the US market.
FCC certification is mandatory for electronic products that emit radio frequency energy, such as wireless devices, radio transmitters, signal amplifiers, and devices using cellular technology.
This article will introduce basic knowledge and requirements of FCC certification and power adapters. We will also help you understand how to apply for FCC certification for your power adapters products.
Types of FCC certification
According to the different levels of risk and interference of electronic products, FCC divides them into three categories: intentional radiators, unintentional radiators, and incidental radiators.
Intentional radiators intentionally generate and emit radio frequency energy by radiation or induction, such as wireless devices, radio transmitters, signal amplifiers, and devices using cellular technology. Before entering the US market, they must obtain FCC Certification (formerly FCC ID).
Unintentional radiators operate at a frequency higher than 9 kHz and use digital techniques but do not intentionally generate or emit radio frequency energy, such as personal computers, printers, keyboards, power adapters, etc. Before entering the US market, they must obtain the FCC Supplier’s Declaration of Conformity (SDoC).
Incidental radiators, such as electric motors, switches, etc., generate radio frequency energy during their operation but are not intended to emit it. They do not need to obtain FCC certification or declaration before entering the US market.
How to apply for FCC certification for a power adapter
If your power adapter belongs to the category of the unintentional radiator, you need to apply for FCC SDoC for it. The main steps are as follows:
Choose a qualified testing laboratory that can perform FCC testing according to the applicable standards and regulations. You can find a list of accredited testing laboratories on the FCC website.
Submit your product information and samples to the testing laboratory for testing. The testing laboratory will issue a test report after completing the testing.
Prepare a declaration of conformity that contains the following information: product identification and model number; name and address of the responsible party; statement of compliance with FCC rules; reference to test report; date and place of issue; signature of the authorized person.
Attach a label on your product that contains the following information: product identification and model number; statement of compliance with FCC rules; name or logo of the responsible party. The label should be visible and durable.
Keep a copy of the test report and declaration of conformity for future reference. You only need to submit them to FCC if requested.
Conclusion
This article briefly introduced the FCC certification, why we need it for power adapters, the types of FCC certification for different products, and how to apply for FCC SDoC for power adapters.

Global Safety Certification of Power Adapters

Power adapters convert alternating (AC) input into low-voltage direct (DC) input, widely used in industrial and commercial equipment. The safety of power adapters is crucial for preventing fire, electric shock, and injury. Therefore, power adapters must comply with relevant safety standards to be sold in different markets. These safety standards are established and administered by national or international agencies, with various government-recognized testing laboratories able to provide certification. This article will introduce the global safety certification of power adapters, including the certification agencies and standards of regions such as the United States, Canada, Europe, Japan, Korea, Russia, India, etc.

The United States and Canada

The United States and Canada have similar safety standards and regulations, so power adapters must obtain corresponding certifications to enter these two markets. UL (Underwriters Laboratories) is the most common certification agency, a global product safety testing and certification laboratory with an extensive electrical product safety standards database. The UL mark indicates that the power adapter meets the safety requirements of the United States and Canada. In addition to UL, other certification agencies can provide certification services for the US and Canadian markets, such as CSA (Canadian Standards Association), ETL (Electrical Testing Laboratories), etc.

Europe

Europe is an economic region composed of multiple countries, so power adapters need to meet the basic requirements of the European Union in order to be sold in the European market. The most common legal mark is CE (Conformité Européenne), which indicates that the product meets the basic requirements of the European Union, including safety, health, and environmental aspects. In addition to CE, some international or regional certification agencies can provide certification services for the European market, such as TüV (Technischer überwachungsverein), VDE (Verband der Elektrotechnik), BSI (British Standards Institution), etc. In addition, in Europe, other marks are applicable in the Nordic countries and other central and eastern European countries such as Denmark, Switzerland, Hungary, Ukraine, and Belarus, such as D-Mark, S-Mark, EAC, etc.

CE Certification and Power Adapter

If you want to produce and export power adapters to the European Economic Area (EEA), you need to comply with the CE certification requirements of these markets, which can affect the performance and safety of your products and other devices.
CE certification is a regulatory mark that indicates compliance with the applicable EU directives and regulations for health, safety, and environmental protection. It works as a trade passport allowing your product to be sold freely in any part of the EEA, regardless of origin.
This article will introduce some basic knowledge and benefits of CE certification and power adapters. We will also help you understand how to apply for CE certification for your power adapters products.
What is CE certification?
CE certification stands for Conformité Européenne (French for European conformity). It is a mark that consists of the CE logo and, if applicable, the four-digit identification number of the notified body involved in the conformity assessment procedure.
CE certification is based on self-declaration by the manufacturer or importer, who ensures that their product meets the relevant EU directives and regulations. The manufacturer or importer must also prepare a declaration of conformity (DoC) and a technical file that contains the product information, test results, and references to the applicable standards.
The CE mark must be visible and durable on the product or packaging. The mark indicates that the product complies with the applicable EU directives and regulations and also allows the authorities to trace the product back to the manufacturer or importer in case of any compliance issues.
How to apply for CE certification for a power adapter
If your power adapter meets the EU directives and regulations for health, safety, and environmental protection, you can apply for CE certification. The main steps are as follows:
Choose a qualified testing laboratory that can perform testing according to the applicable standards and regulations. You can find a list of accredited testing laboratories on the EU website.
Submit your product information and samples to the testing laboratory for testing. The testing laboratory will issue a test report after completing the testing.
Prepare a declaration of conformity (DoC) that contains the following information: product identification and model number; name and address of manufacturer or importer; reference to test report; date and place of issue; signature of the authorized person.
Prepare a technical file that contains the following information: product description and specifications; design notes and drawings; bill of materials; test results and certificates; risk assessment and analysis; user manual and instructions.
Attach a label on your product or its packaging containing the CE mark and other relevant information. The label should be visible and durable.
Benefits of CE certification for power adapter
CE certification can help you access the EEA markets with a single mark. It can save you time and money by avoiding repetitive testing and certification for the same product in different markets.
CE certification can also help you demonstrate product quality and safety to your customers and stakeholders. It can enhance your brand reputation and competitiveness in these markets.

Japan

Japan has safety standards and regulations, so power adapters must obtain corresponding certifications to enter the Japanese market. The most common certification agency is PSE (Product et al.), a mandatory certification system designated by the Japanese Ministry of Economy, Trade and Industry to ensure that electrical products used in Japan do not cause fire or electric shock accidents. The PSE mark indicates that the power adapter meets the safety requirements of Japan.

Korea

Korea also has safety standards and regulations, so power adapters must obtain corresponding certifications to enter the Korean market. The most common certification agency is KC (Korea Certification), a mandatory certification system designated by the Korean Ministry of Industry, Trade, and Resources to ensure that electrical products used in Korea do not cause fire or electric shock accidents. The KC mark indicates that the power adapter meets the safety requirements of Korea.

Russia

Russia also has safety standards and regulations, so power adapters must obtain corresponding certifications to enter the Russian market. The most common certification agency is EAC (Eurasian Conformity), which is a unified certification system of the customs union composed of Russia, Belarus, Kazakhstan, Armenia, and Kyrgyzstan, aiming to ensure that electrical products used in these countries meet the requirements of safety, quality and environmental protection. The EAC mark indicates that the power adapter meets the safety requirements of the customs union.

India

India also has safety standards and regulations, so power adapters must obtain corresponding certifications to enter the Indian market. The most common certification agency is BIS (Bureau of Indian Standards), a mandatory certification system designated by the central government of India, aiming to ensure that electrical products used in India meet the requirements of safety, quality, and environmental protection. The BIS mark indicates that the power adapter meets the safety requirements of India.

Conclusion

The global safety certification of power adapters is a multi-faceted issue that requires choosing the appropriate certification agency and standard according to different markets and requirements. Power adapters not only need to ensure safety but also consider environmental aspects to meet the expectations of consumers and society. Power adapters can improve their market competitiveness and credibility by obtaining regional safety certifications and promoting sales and development.
Introduction of Oushangmei Power Supply Technology Co., Ltd.

The power adapter is a device that converts alternating current into low-voltage direct current. It is an essential accessory for various small portable electronic devices and appliances. With the progress of science and technology and the development of society, the types and quantities of electronic products are increasing, and the demand for power adapters is also increasing. According to the market research agency report, the global power adapter market size is expected to reach 25 billion US dollars in 2020 and 35 billion US dollars in 2025, with a compound annual growth rate of 6.8%.

The main driving factors of the power adapter market include the following points:

The popularity and replacement of electronic products. With the popularity of mobile devices such as smartphones, tablets, laptops, etc., and the development of new technologies such as 5G, the Internet of Things, artificial intelligence, etc., the demand for power adapters also increases. At the same time, as consumers' requirements for performance, function, and appearance increase, electronic products also need to be constantly updated and replaced, which drives the update and replacement of power adapters.
The technological innovation and legal unification of power adapters. In order to meet the consumers' demand for charging speed, compatibility, and safety, as well as energy-saving and environmental protection requirements, power adapters are also constantly undergoing technological innovation and legal unification. For example, using fast charging technology, wireless charging technology, USB-C interface, etc., to improve charging efficiency and convenience; using high-frequency switching technology, synchronous rectification technology, power factor correction technology, etc., to improve the efficiency and stability of power adapters; using over-voltage protection, over-current protection, short-circuit protection, etc., to improve the safety of power adapters. 

Innovative design

Support bidirectional charging function. Type chargers can automatically switch input and output modes according to the device's needs, achieving bidirectional charging. It can charge devices and provide power for other devices, which is convenient for users.
Support multiple protocol compatibility functions. Type charger supports USB PD, QC, AFC, and other fast charging protocols. It can be compatible with different brands and models of devices without worrying about the mismatch between charger and device.
Support magnetic adsorption function. The type of charger uses a magnetic adsorption design. It can connect the USB-C interface and device without worrying about plug direction and poor contact problems, improving charging efficiency and convenience.
Environmental concept

Support energy saving and emission reduction functions. Type charger uses high-efficiency conversion chips and components, effectively reducing the loss and heat of power supply, saving energy consumption, and meeting the EU energy efficiency standards.
Support environmental material function. Type charger uses lead-free, mercury-free
Received message. 

Support environmental material function. Type charger uses lead-free, mercury-free, halogen-free, and other environmental materials, meeting RoHS and other environmental standards and reducing environmental pollution.
Support recycling function. Type charger uses a detachable and recyclable design, convenient for users to replace and repair, extending the service life and safety.
Oushangmei Technology Power Co., Ltd.'s type charger products have passed CCC, CE, UL, FCC, and other domestic and foreign certifications; quality is guaranteed and trustworthy. If you need to buy or consult type charger products, please contact us, and we will provide you with quality products and services.

Shenzhen Oushangmei Technology Co., Ltd. is a professional manufacturer and R&D company specializing in producing switch power supplies, power adapters, LED power supplies, waterproof power supplies, and other products. Our company possesses advanced production equipment and testing facilities, a first-class sales team, and an independent and high-level R&D team. In the field of power supplies, we have established a sound service system and product sales channel by borrowing from the advanced technology of peers in the industry and leveraging the rich experience of our engineers. Our products have passed various certifications, including CCC, cETL 1310, CE, UL/Cul, FCC, KC, SAA, C/tick, CB, TUV/GS, and ROHS.

OUSM Technology Power Supply: A High-Quality and Reliable Option

Power supply adapters are essential to many electronic devices, from laptops and smartphones to gaming consoles and routers. However, not all power supply adapters are created equal, and choosing the right one can significantly affect performance, stability, and safety. This article will explore OUSM Technology power supply adapters and highlight their performance and advantages, using examples and user reviews.

OUSM Technology is a leading manufacturer of power supply adapters, offering a wide range of models and specifications to meet the needs of different users. Their products are known for their high efficiency, stability, and safety, making them a popular choice among consumers.

# Introduction to Shenzhen OUSM Power Technology Co., Ltd.

The company's main products are wall-mounted power adapters and desktop power adapters. They have different specifications and models to meet the needs of different customers. The company's products have the following features:

- Level 6 energy efficiency: Comply with the latest energy efficiency standards, save energy, protect the environment, and reduce operating costs.
- Adapt to the world: It can adapt to 100-240V AC input voltage and is suitable worldwide.
- Military quality: Use high-quality electronic components and strict process procedures to ensure the durability and reliability of the product.
- Beautiful appearance: The shell is made of fire-resistant material, with a simple and elegant design that conforms to ergonomic principles.

## Service Advantages

The company's mission is to provide quality products to the market, with customer satisfaction as the goal, innovation as the driving force, and continuously improve its core competitiveness. The company has the following service advantages:

- Professional R&D team: The company has a five-person professional R&D team covering circuit design, safety assessment, appearance design, structure design, technical management, and other talents. It can plan and design according to customers' functional requirements and provide customers with tailor-made products with reasonable configuration and high-cost performance.
- Advanced production equipment: The company has a complete production line and testing equipment. The production workshop has plug-in lines, wave soldering, comprehensive power test lines, fully automatic aging rooms, laser engraving machines, high-performance power analyzers, oscilloscopes, and other equipment. Create a high-quality power adapter manufacturer.
- Perfect after-sales service: The company provides a one-year warranty and lifetime maintenance service. We will respond and solve any quality or usage problems in time to make customers worry-free.

Oushangmei Technology is a professional company that produces and sells high-quality power adapters. Its products cover various specifications and power levels of AC output and DC output power adapters, which can meet the needs of different devices and occasions. Oushangmei Technology power adapters have the following advantages:

Energy-efficient: Oushangmei Technology power adapters use advanced switching power supply technology, which can reduce power consumption and heat generation, improve conversion efficiency, and meet national energy-saving standards.
Stable and reliable: Oushangmei Technology power adapters use high-quality transformers, capacitors, control chips, and other components, which have been strictly tested and inspected to ensure the stability of output voltage and current and prevent overvoltage, overcurrent, short circuit, and other faults.
Safe and environmentally friendly: Oushangmei Technology power adapters have passed the national safety certification, comply with CE, FCC, and other international standards, have good anti-interference and lightning protection capabilities, and use lead-free, mercury-free, and other environmentally friendly materials to reduce environmental pollution.
Personalized customization: Oushangmei Technology power adapters provide customers with a variety of interface and plug options, as well as different colors and shapes of design, to meet the personalized needs of customers.
To demonstrate the performance and advantages of Oushangmei Technology power adapters, we can refer to the following cases or user reviews:

Case 1: A company uses Oushangmei Technology power adapters to power its security cameras and finds that compared with other brands of power adapters, Oushangmei Technology power adapters can better ensure the clarity and stability of the cameras, without any screen jitter or splash screen phenomena, while also saving some electricity costs.
Case 2: A school uses Oushangmei Technology power adapters to power its multimedia classroom projectors, speakers, and other equipment and finds that Oushangmei Technology power adapters can effectively eliminate the interference between devices, improve the quality and effect of audio and video and also extend the service life of the equipment.

One of the advantages of OUSM Technology power supply adapters is their high efficiency. They are designed to convert the AC power from the wall outlet to the DC power required by the electronic device with minimal energy loss, resulting in lower electricity bills and longer battery life. Moreover, OUSM Technology power supply adapters are engineered to meet strict energy efficiencies standards, such as Energy Star and DoE Level VI, ensuring they consume the least energy possible.

Another advantage of OUSM Technology power supply adapters is their stability. They are built with high-quality components and advanced technology to provide a stable and consistent output voltage and current, such as overvoltage protection, short-circuit protection, and electromagnetic interference (EMI) filtering. This stability is crucial for the proper functioning of electronic devices, as any fluctuations or spikes in power can cause damage or malfunctions.

Finally, OUSM Technology power supply adapters are also known for their safety. They undergo rigorous testing and certification processes to comply with international safety standards, such as UL, CE, FCC, and RoHS. They are designed with multiple safety features, such as overcurrent protection, overtemperature protection, and overcharge protection, to prevent potential hazards or accidents.

User reviews of OUSM Technology power supply adapters are generally positive, with many users praising their performance and durability. For example, one user on Amazon commented, "I have been using OUSM Technology power supply adapters for a few years now, and they have never let me down. They are reliable, efficient, and safe, and I appreciate the peace of mind of using them." Another user on Reddit wrote, "I used to buy other brands of power supply adapters, but I found that they often failed. I decided to try OUSM Technology power supply adapters because they were very durable. I have been using them for over a year and have not had any issues. Their durability is impressive, and I highly recommend them."

In conclusion, OUSM Technology power supply adapters are a high-quality and reliable option for anyone looking for a power supply adapter. Their efficiency, stability, and safety make them stand out in the market, and user reviews attest to their performance and durability. Whether you are a gamer, a programmer, or a regular user, you can find a suitable power supply adapter from OUSM Technology.
Safety Certification of Power Adapters

Power adapters convert alternating (AC) input into low-voltage direct (DC) input, widely used in industrial and commercial equipment. The safety of power adapters is crucial for preventing fire, electric shock, and injury. Therefore, power adapters must comply with relevant safety standards to be sold in different markets. These safety standards are established and administered by national or international agencies, with various government-recognized testing laboratories able to provide certification. This article will introduce the safety certification of power adapters, including well-known global and environmental certifications.

Well-known Global Certifications

Countries or regions have different safety standards and regulations, so power adapters must obtain corresponding certifications to enter the local market. Some international certification agencies can provide certification services for multiple markets, such as UL, TüV, CE, etc. These certification agencies have safety marks, which can be affixed to the power adapters to indicate their compliance with relevant standards. Here are some common, well-known global certifications and their meanings:

UL: Underwriters Laboratories is a global product safety testing and certification laboratory with an extensive electrical product safety standards database. The UL mark indicates that the power adapter meets the safety requirements of the United States and Canada.
TüV: Technischer überwachungsverein is a German technical inspection association that provides various product testing and certification services. The TüV mark indicates that the power adapter meets the safety requirements of Europe or other regions.
CE: Conformité Européenne is a legal mark of the European Union, indicating that the product meets the basic requirements of the European Union, including safety, health, and environmental aspects.
Environmental Certifications

In addition to safety certifications, power adapters must consider environmental requirements, such as energy saving, emission reduction, and recyclability. Some international or regional environmental standards and programs can help power adapters improve their environmental performance and obtain corresponding certifications or marks. Here are some standard environmental certifications and their meanings:

RoHS: Restriction of Hazardous Substances is a legal directive of the European Union that restricts the use of certain hazardous substances in electronic devices, such as lead, mercury, cadmium, etc.
WEEE: Waste Electrical and Electronic Equipment is a legal directive of the European Union that requires manufacturers to be responsible for the electronic devices they produce and recycle or dispose of them at the end of their useful life.
Energy Star: Do the United States and Canada jointly implement an energy-saving program to help consumers choose high-efficiency and low-energy products? The Energy Star mark indicates that the power adapter meets an energy-saving standard.

CB Certification and Power Adapter


Suppose you want to produce and export power adapters to different countries. In that case, you may need to comply with various safety standards and certification requirements of different markets, which can be time-consuming and costly.
CB certification is a solution that can help you simplify the process and save resources. It is a global system for the mutual recognition of test results and certificates relating to the safety of electrical and electronic products based on IEC standards.
This article will introduce some basic knowledge and benefits of CB certification and power adapters. We will also help you understand how to apply for CB certification for your power adapter products.

What is CB certification?
CB certification stands for Certification Body certification. IECEE, the IEC System of Conformity Assessment Schemes for Electrotechnical Equipment and Components, operates it.
The CB system allows participating countries and certification organizations to accept test reports and certificates issued by each other, thus reducing the need for duplicate testing and certification for the same product in different markets.
More than 50 countries currently participate in the CB system, including major markets such as China, Japan, South Korea, Singapore, India, Australia, USA, Canada, Mexico, Brazil, Argentina, the UK, France, Germany, Italy, Spain, Sweden, Norway, Finland, Denmark, Netherlands, Belgium, Switzerland, Austria, Poland, Czech Republic, Hungary, Turkey, Russia, South Africa, and Saudi Arabia.
How to apply for CB certification for a power adapter
If your power adapter meets the applicable IEC standards for safety and performance, you can apply for CB certification for it. The main steps are as follows:
Choose a qualified testing laboratory that can perform CB testing according to the applicable standards and regulations. You can find a list of accredited testing laboratories on the IECEE website.
Submit your product information and samples to the testing laboratory for testing. The testing laboratory will issue a CB test report and a CB certificate after completing the testing.
Present your CB test report and certificate to other participating countries or certification organizations to obtain their national or regional certifications or marks for your product. You may need to provide some additional information or documents depending on their specific requirements.
Attach a label on your product containing relevant information and marks for each market you want to enter.
Benefits of CB certification for power adapter
CB certification can help you access global markets with a single test report and certificate. It can save you time and money by avoiding repetitive testing and certification for the same product in different markets.
CB certification can also help you demonstrate product quality and safety to your customers and stakeholders. It can enhance your brand reputation and competitiveness in the global market.

Conclusion

The safety certification of power adapters is a multi-faceted issue that requires choosing the appropriate certification agency and standard according to different markets and requirements. Power adapters not only need to ensure safety but also consider environmental aspects to meet the expectations of consumers and society. Power adapters can improve their market competitiveness and credibility by obtaining well-known global and environmental certifications, promoting their sales and development.


The power adapters produced by Oushangmei Technology Power Supply Co., Ltd. have multiple protection functions, such as over-voltage protection, over-current protection, overload protection, short circuit protection, etc., to ensure the safety and stability of electrical equipment. The company's independently developed products have multiple patented technologies and have passed certifications such as ISO9001 and ISO14001, ensuring quality. The company has a modern production factory and efficient production equipment to meet the needs of various customers.

Power adapters are one of the essential accessories for modern electronic devices. Oushangmei Technology Power Supply Co., Ltd. has always put product quality and user experience first, adhering to the business philosophy of "winning the market with quality and winning customers with service" and continuously improving product quality and service quality. The company will provide better products and services with a more professional and lean attitude, helping customers succeed tremendously in their respective fields.

With the rapid development of electronic products, the demand for power adapters has increased in recent years. Oushangmei Technology Power Supply Co., Ltd. has actively responded to market demand and continuously innovated to provide customers with more diverse, high-quality products. The company has established long-term partnerships with well-known domestic and foreign enterprises, and its products are exported to many countries and regions.

In addition to product quality and innovation, Oushangmei Technology Power Supply Co., Ltd. also attaches great importance to environmental protection and social responsibility. The company has established a sound environmental management system and a quality management system, strictly controls the environmental impact of production activities, and actively carries out social welfare activities, contributing to the sustainable development of society.

SAA Certification and Power Adapter

If you want to produce and export power adapters to Australia or New Zealand, you need to comply with the SAA certification requirements of these markets, which can affect the performance and safety of your products and other devices.
SAA certification is a regulatory mark that indicates compliance with the applicable Australian standards for electrical safety. It works as a trade passport allowing your product to be sold freely in Australia and New Zealand, regardless of origin.
What is SAA certification?
SAA certification stands for Standards Association of Australia certification. The mark consists of the SAA logo and a certificate number. It is also known as RCM (Regulatory et al.) certification, a unified mark for electrical safety and electromagnetic compatibility (EMC) compliance in Australia and New Zealand.
SAA certification is based on third-party testing and certification by an accredited body, such as SAA Approvals, which ensures that the product meets the relevant Australian standards for electrical safety. The certified body must also register the product with the Electrical Regulatory Authorities Council (ERAC) database.
The SAA mark must be visible and durable on the product or packaging. The mark indicates that the product complies with the applicable Australian electrical safety standards and allows the authorities to trace the development back to the manufacturer or importer in case of any compliance issues.
How to apply for SAA certification for a power adapter
If your power adapter meets the applicable Australian standards for electrical safety, you can apply for SAA certification for it. The main steps are as follows:
Choose a qualified testing laboratory that can perform testing according to the applicable standards and regulations. You can find a list of accredited testing laboratories on the SAA Approvals website.
Submit your product information and samples to the testing laboratory for testing. The testing laboratory will issue a test report after completing the testing.
According to the test report, choose an accredited body that can issue SAA certificates. You can find a list of accredited bodies on the ERAC website.
Submit your test report and other required documents to the accredited body for certification. The certified body will issue an SAA certificate and a certificate number after verifying the compliance of your product.
Register your product with the ERAC database using your certificate number and other product information. You need to pay a registration fee for each product family.
Attach a label on your product or its packaging that contains the SAA mark and your certificate number. The title should be visible and durable.
Benefits of SAA certification for power adapter
SAA certification can help you access the Australian and New Zealand markets with a single mark. It can save you time and money by avoiding repetitive testing and certification for the same product for different needs.
SAA certification can also help you demonstrate product quality and safety to your customers and stakeholders. It can enhance your brand reputation and competitiveness in these markets.

Oushangmei Technology Co., Ltd. is a power adapter manufacturer that can provide solutions for all power needs. Whether you need a power adapter for your laptop, phone, tablet, or other devices, Oushangmei Technology can offer high-quality products with advanced technology and excellent service.

Power adapters convert the alternating current (AC) from the wall outlet to the direct current (DC) that your device needs. There are different power adapters, such as AC output, DC output, regulated, unregulated, low power, medium power, high power, etc. Oushangmei Technology can produce various power adapters according to your specifications and requirements.

In conclusion, as a professional power adapter manufacturer, Oushangmei Technology Power Supply Co., Ltd. has always been committed to providing customers with high-quality and reliable products and services, adhering to the business philosophy of quality first and customer-oriented, and continuously improving product quality and service quality to meet the ever-changing market demand. The company will continue to work hard to become a world-renowned power adapter brand and contribute to the development of the electronic industry.
C-Tick and Power Adapter


Suppose you want to produce and export power adapters to Australia or New Zealand. In that case, you may need to comply with these markets' electromagnetic compatibility (EMC) standards and requirements, which can affect your products' and other devices' performance and safety.
C-Tick is a certification mark that indicates compliance with the applicable EMC standards and also provides a traceable link between the product and the supplier. It was established by the Australian Communications and Media Authority (ACMA) and recognized by the New Zealand Radio Spectrum Management (RSM).
This article will introduce some basic knowledge and benefits of C-Tick certification and power adapters and help you understand how to apply for C-Tick certification for your power adapter products.
What is the C-Tick certification?
C-Tick certification is a voluntary certification scheme that allows suppliers to demonstrate compliance with the EMC standards and regulations of Australia and New Zealand. It covers a wide range of electronic products that can generate or be affected by electromagnetic interference, such as power adapters, computers, printers, radios, televisions, etc.
C-Tick certification is based on self-declaration by the supplier, who ensures their product meets the relevant EMC standards and requirements. The supplier must also register with the ACMA or RSM as a responsible supplier before applying the C-Tick mark on their product.
The C-Tick mark consists of a stylized letter "C" within a tick symbol, followed by the supplier's identification code. The mark must be visible and durable on the product or its packaging. The mark indicates that the product complies with the applicable EMC standards and allows the authorities to trace the product back to the supplier in case of compliance issues.
How to apply for C-Tick certification for a power adapter
You can apply for C-Tick certification if your power adapter meets the applicable EMC standards for Australia and New Zealand. The main steps are as follows:
Choose a qualified testing laboratory that can perform EMC testing according to the applicable standards and regulations. You can find a list of accredited testing laboratories on the ACMA or RSM websites.
Submit your product information and samples to the testing laboratory for testing. The testing laboratory will issue a test report after completing the testing.
Prepare a declaration of conformity that contains the following information: product identification and model number; name and address of the responsible supplier; reference to test report; date and place of issue; signature of an authorized person.
Register with the ACMA or RSM as a responsible supplier and obtain a supplier identification code. You must provide basic information about your business and products and pay a registration fee.
Attach a label on your product or its packaging that contains the C-Tick mark and your supplier identification code. The label should be visible and durable.
Benefits of C-Tick certification for power adapter
C-Tick certification can help you access the Australian and New Zealand markets with a single mark. It can save you time and money by avoiding repetitive testing and certification for the same product in different markets.
C-Tick certification can also help you demonstrate product quality and safety to your customers and stakeholders. It can enhance your brand reputation and competitiveness in these markets.

Power adapters are indispensable to modern electronic products, providing stable power to various devices. On the other hand, Oushangmei Technology is a company that specializes in the research, development, production, and sales of power adapters, with years of industry experience and an excellent technical team. Its market competitiveness is highly regarded.

Firstly, Oushangmei Technology has certain advantages in technology research and development. The company has a research and development team composed of engineers and technical experts who continuously explore and introduce new technologies, making the company's power adapters make significant progress in performance and functionality. At the same time, the company focuses on technological innovation, constantly developing new products to meet the market's ever-changing demands.

Secondly, Oushangmei Technology emphasizes quality management, a significant source of the company's competitiveness. The company strictly controls every aspect of the production process to ensure that each power adapter meets international standards and customer quality requirements. By introducing a quality management system and implementing comprehensive quality management, the company continually improves product quality and reliability, winning the trust and support of its customers.

Finally, Oushangmei Technology has a specific advantage in its service system. The company adheres to the "customer first" philosophy, continuously improving and optimizing after-sales services and providing customers with high-quality services and technical support. The company has a professional after-sales service team that can respond to customer needs promptly, providing comprehensive technical support and solutions.

Overall, Oushangmei Technology has certain competitiveness and advantages in the market, mainly reflected in technology research and development, quality management, and service system. As the market changes and customer demands increase, the company will continue strengthening its competitiveness, improving product quality and performance, and providing better power adapter products and services.

KC, KCC Certification, and Power Supply

KC, KCC certification is a regulatory mark that indicates compliance with the applicable Korean standards for electrical safety and electromagnetic compatibility (EMC). It works as a trade passport allowing your product to be sold freely in South Korea, regardless of origin.

What is KC, KCC certification
KC, KCC certification stands for Korea Certification and Korea Communications Commission certification. The mark consists of the KC logo and a certificate number. It is also known as RRA (Radio Research Agency) certification, a unified effect for electrical safety and EMC compliance in South Korea.
KC, KCC certification is based on third-party testing and certification by an accredited body, such as KTL (Korea Testing Laboratory), responsible for ensuring that the product meets the relevant Korean standards for electrical safety and EMC. The accredited body must also register the product with the KATS (Korean Agency for Technology and Standards) database.
The KC, KCC mark must be visible and durable on the product or its packaging. The mark indicates that the product complies with the applicable Korean standards for electrical safety and EMC and also allows the authorities to trace the development back to the manufacturer or importer in case of any compliance issues.
How to apply for KC, KCC certification for power adapter
If your power adapter meets the applicable Korean electrical safety and EMC standards, you can use it for KC and KCC certification. The main steps are as follows:
Choose a qualified testing laboratory that can perform testing according to the applicable standards and regulations. You can find a list of accredited testing laboratories on the KTL website.
Submit your product information and samples to the testing laboratory for testing. The testing laboratory will issue a test report after completing the testing.
According to the test report, choose an accredited body that can issue KC and KCC certificates. You can find a list of accredited bodies on the KATS website.
Submit your test report and other required documents to the accredited body for certification. The certified body will issue a KC, KCC certificate, and certificate number after verifying the compliance of your product.
Register your product with the KATS database using your certificate number and other product information. You need to pay a registration fee for each product family.
Attach a label on your product or its packaging that contains the KC, KCC mark, and certificate number. 

Standard Output Voltage, Current, and Power of Power Adapters

Power devices can convert one form of electrical energy into another, such as batteries, chargers, adapters, etc. The output voltage of a power device is the voltage it provides to the load (such as mobile phones, laptops, light bulbs, etc.), usually expressed in volts (V). Different shipments may require different output voltages, so the output voltages of power devices also vary.

A power adapter is a device that can convert alternating current into direct current with different voltages and currents, commonly used for charging or powering devices such as mobile phones, laptops, routers, etc. The power adapter's output voltage, current, and power are essential parameters that affect its performance and compatibility. This article will introduce and analyze these parameters.

Output voltage: Output voltage refers to the voltage of the direct current provided by the power adapter to the load (such as mobile phones, laptops, etc.), usually expressed in volts (V). Different shipments may require different output voltages, so the power adapter's output voltage varies. According to the commonly used output voltages in the world, according to the type of power adapter, there are several standard output voltages:

5V: This is one of the most common output voltages, mainly used for charging low-power devices such as mobile phones, tablets, digital cameras, etc. The USB interface usually provides the 5V output voltage, a USB adapter. A USB adapter can be a charger head that plugs directly into the wall, a USB port connected to a laptop or desktop computer, a mobile power source, etc.
9V: This is another standard output voltage, mainly used for powering medium and small devices such as wireless routers, speakers, printers, etc. A round plug usually provides the 9V output voltage, a DC adapter. A DC adapter can be a transformer that plugs directly into the wall or a converter connected to another device, etc.
12V: This is a higher output voltage, mainly used for powering large devices such as desktop computers, monitors, cameras, etc. A four-pin or eight-pin plug usually provides the 12V output voltage, called an AC adapter. An AC adapter can be a transformer plugging directly into the wall, a stabilizer connected to another device, etc.
15V: This is a newer output voltage, mainly used for charging high-performance devices such as laptops and tablets. The USB-C interface usually provides the 15V output voltage or USB PD (Power Delivery) power. USB PD power can be a charger plugged directly into the wall, a distributor connected to other devices, etc.
19V: This is an older output voltage, mainly used for powering high-power devices such as laptops and projectors. A round plug usually provides the 19V output voltage, a laptop adapter. A laptop adapter can be a converter plugged directly into the wall, a regulator connected to other devices, etc.
These are some common types and uses of output voltages. Of course, there are other more or less special output voltages, such as 3.7V, 4.2V, 24V, 36V, etc. Different output voltages correspond to foreign output powers and efficiencies. Therefore, when using or buying power devices, pay attention to matching the load parameters and the power device. Otherwise, it may cause insufficient charge or discharge, or damage to the device.

Output current: Output current refers to the current passing through the load (such as mobile phones, laptops, etc.), usually expressed in amperes (A). Different shipments may require different output currents, so the output current of the power adapter also varies. According to the commonly used output currents in the world, according to the type of power adapter, there are several common output currents:

1A: This is a small output current, mainly used for charging low-power devices such as Bluetooth headphones, wristbands, etc. The USB interface usually provides the 1A output current, a USB adapter. A USB adapter can be a charger head that plugs directly into the wall, a USB port connected to a laptop or desktop computer, or a mobile power source.
2A: This is a large output current, mainly used for charging high-power devices such as mobile phones, tablets, etc. The USB interface usually provides the 2A output current, a USB adapter. A USB adapter can be a charger head that plugs directly into the wall, a USB port connected to a laptop or desktop computer, or a mobile power source.
3A: This is a newer output current, mainly used for charging high-performance devices, such as laptops, tablets, etc. 3A output current is usually provided by a USB-C interface called USB PD (Power Delivery) adapter. USB PD adapter can be directly plugged into the wall charger or connected to other devices, distributors, etc.
4A: This is an older output current, mainly used for powering high-power devices, such as desktops, monitors, etc. A four-pin or eight-pin plug usually provides a 4A output current called an AC adapter. The AC adapter can be directly plugged into the wall transformer or connected to other devices, stabilizers, etc.
5A: This is a higher output current, mainly used for powering high-power devices, such as projectors, cameras, etc. A round plug usually provides a 5A output current called a DC adapter. DC adapter can be directly plugged into the wall converter or connected to other devices converter, etc.
These are some expected output current types and uses. Of course, there are also more or less or more special output currents, such as 0.5A, 1.5A, 2.5A, 3.5A, etc. Different output currents correspond to additional output power and efficiency. Therefore, when using or buying power adapters, you should match the load and power adapter parameters well. Otherwise, it may cause insufficient charge and discharge or damage to the device.


Output power: Output power refers to the power output by the load (such as mobile phones, laptops, etc.), usually expressed in watts (W). Different shipments may require additional output power, so the power of the power adapter varies. According to the commonly used output power in the world, according to the type of power adapter, there are several typical output power:

5W: This is a small output power, mainly used for charging low-power devices such as Bluetooth headphones, wristbands, etc. The USB interface usually provides the 5W output power and corresponds to the parameter combination of 5V and 1A.
10W: This is a significant output power, mainly used for charging high-power devices such as mobile phones, tablets, etc. The USB interface usually provides the 10W output power and corresponds to the parameter combination of 5V and 2A or 9V and 1.1A.
15W: This is a newer output power, mainly used for charging high-performance devices such as laptops and tablets. The USB-C interface usually provides the 15W output power and corresponds to the parameter combination of 5V and 3A or 9V and 1.67A or 12V and 1.25A or 15V and 1A.
20W: This is an older output power, mainly used for powering high-power devices such as desktop computers, monitors, etc. The 20W output power is usually provided by a four-pin or eight-pin plug and corresponds to the parameter combination of 12V and 1.67A or 19V and 1.05A.
25W: This is a higher output power, mainly used for powering high-power devices such as projectors, cameras, etc. A round plug usually provides the 25W output power and corresponds to the parameter combination of 12V and 2.08A or 19V and 1.32A or 24V and 1.04A or 36V and 0.69A.
These are some common output power types and uses; of course, there is other more or less extraordinary output power, such as 7.5W, 18W, 30W, 45W, 60W, 90W, etc. Different output power corresponds to additional output efficiency and compatibility, so when using or buying a power adapter, pay attention to matching the parameters of the load and the power adapter well. Otherwise, it may cause insufficient charge or damage the device.

Summary: A power adapter is a standard electrical device; its output voltage, current, and power are essential parameters that affect its performance and compatibility. When using or buying a power adapter, choose the appropriate parameter combination according to the load's needs to ensure the device's regular operation and safe use.
Oushangmei Technology Co., Ltd. is a professional manufacturer of ac dc power adapters with years of research, development, and manufacturing experience. The products cover various voltage and current specifications, which can meet the needs of different customers. Oushangmei Technology Co., Ltd. pays attention to product quality and safety, and all power adapters have passed many national certifications and global safety certifications, such as GS, UL, CE, FCC, BS, SAA, CCC, PSE, KC, and other global safety certifications.

Power adapter safety certification refers to meeting the standards or regulations of various countries or regions on the safety performance of electrical products. It obtains corresponding certificates or marks after passing the inspection and certification by relevant institutions. Safety certification can ensure that the product will not cause harm to humans or property during use and can also avoid market disputes or legal liabilities caused by unqualified products. Electrical products must comply with the safety performance standards or regulations of various countries or regions when sold and used in the global market to ensure that the products will not cause harm to humans or property. In order to prove that the products meet these requirements, they usually need to pass the inspection and certification by relevant institutions and obtain corresponding certificates or marks. This is what is called global safety certification.

Many types of global safety certification exist, and different countries or regions have different certification systems and standards. Generally speaking, they can be divided into the following categories according to regions:

European safety certification: mainly includes CE, GS, CB, VDE, TUV, and other marks applicable to the European Union and its related countries or regions.
American safety certification: mainly includes UL, FCC, ETL, and other marks applicable to the United States and its related countries or regions.
Japanese safety certification: mainly includes PSE, JET, JQA, and other marks applicable to Japan and its related countries or regions.
Australian safety certification: mainly includes SAA, RCM, and other marks applicable to Australia and its related countries or regions.
Chinese safety certification: mainly includes CCC, CQC, and other marks applicable to China and its related countries or regions.
Korean safety certification: mainly includes KC, KCC, and other marks applicable to Korea and its related countries or regions.
Other safety certifications: There are also some other safety certifications, such as BS (UK), IRAM (Argentina), INMETRO (Brazil), SASO (Saudi Arabia), NOM (Mexico), etc.

Oushangmei Technology Co., Ltd. is a professional manufacturer of power adapters with more than ten years of production experience. The products cover various voltage and current specifications, which can meet the needs of different customers. Oushangmei Technology Co., Ltd. pays attention to product quality and safety. All power adapters have passed many national certifications, such as GS, UL, CE, FCC, BS, SAA, CCC, PSE, KC, and other global safety certifications. These certifications can ensure that the products will not cause danger during use and improve the competitiveness and reputation of the products in the global market. Oushangmei Technology Co., Ltd.

Global Safety Certification

Our Adapters Have Past Global Safety Certifications like GS, UL/cUL, CE, FCC, BS, SAA, CCC, PSE, KC, And Much More…

The power adapter is a device that converts AC power to DC power, widely used in various small portable electronic devices and electronic appliances, such as security cameras, set-top boxes, routers, light strips, massagers, and so on. The quality and safety of power adapters directly affect the performance and life of the device and users' personal and property safety. Therefore, choosing a high-quality power adapter is very important.

Oushangmei ac dc power supply Technology Co., Ltd. is a professional manufacturer of power adapters with more than ten years of production experience. The products cover various voltage and current specifications, which can meet the needs of different customers. Oushangmei ac dc power supply Technology Co., Ltd. pays attention to product quality and safety. The power adapters produced by Oushangmei ac dc power supply Technology Co., Ltd. have the following characteristics:

Safe and reliable: All power adapters have passed many national certifications, such as GS, UL, CE, FCC, BS, SAA, CCC, PSE, KC, and other global safety certifications. These certifications can ensure that the products will not cause harm to humans or property during use and improve the competitiveness and reputation of the products in the global market.
Strict testing: Each factory power adapter has undergone over 3 hours of aging test. The aging test refers to the long-term operation test of the product under extreme conditions such as high temperature or high pressure to test the stability and reliability of the product. The aging tests can effectively filter out unqualified or inferior products and improve the product qualification rate and life.
9-fold intelligent protection: All power adapters adopt multiple protection measures, such as over-voltage protection, over-current protection, over-temperature protection, short-circuit protection, etc. These protection measures can prevent product damage or fire in abnormal situations and ensure the safety of users and devices.
Twenty-eight reliable performance tests: All power adapters have passed 28 reliable performance tests. These tests include input-output characteristic tests, efficiency tests, temperature rise tests, noise tests, etc. These tests can verify whether the performance indicators of the product under various working conditions meet the standard requirements.
Power supply strict random sampling: Oushangmei ac dc power Supply Technology Co., Ltd. has carried out strict random sampling for all power supplies produced by Oushangmei ac dc power Supply Technology Co., Ltd. Random sampling refers to randomly extracting a part of products from batch products for inspection or test according to a certain proportion. Random sampling can effectively supervise and control product quality and timely find and solve problems.

Safety & Reliability Strict Testing

9-Fold Intelligent Protection, 28 Reliable Performance Tests, All Power Supplies & Adapters are Strictly Randomly Sampled…

A power adapter is a device that converts AC input to DC output for small portable electronic devices and appliances. It usually consists of a shell, a transformer, an inductor, a capacitor, a control IC, a PCB board, and other components. It can be classified into wall-mounted and desktop types according to the connection mode. It is widely used for security cameras, set-top boxes, routers, light strips, massagers, and other devices.

Oushangmei Technology Co., Ltd. is a professional manufacturer of various power adapters with advanced production equipment, testing instruments, and a high-quality technical and management team. We are committed to providing customers with high-quality, high-performance, high-efficiency, and high-safety power adapter products. We produce type charger products with various specifications and models, meeting different power and voltage requirements, such as 45W, 65W, 90W, etc., and 5V, 9V, 12V, 15V, 20V, etc.

Our power adapter products have passed strict energy and environmental certifications, meeting Europe and America's level 6 energy efficiency standards, saving energy, and reducing carbon emissions. At the same time, our products also meet the environmental standards of RoHS, Reach, etc., containing no harmful substances, protecting human health and the earth's environment.

We have a complete range of products, covering different output voltage and current ranges, which can meet the needs of different customers. We can customize products according to customers' special requirements, providing personalized service. Our products have been exported to Europe, America, Asia, and other countries and regions. Oushangmei Technology Co., Ltd. is your trustworthy power adapter supplier. We will provide the best solutions with our high-quality products and services. You are welcome to contact us at any time for consultation or ordering.

Energy Saving & Environmental

Comply with Level 6 Energy Efficiency Standard, Environmental Protection standards such as RoHS, Reach, etc...

Shenzhen OUSM Power Technology Co., Ltd. is a high-tech enterprise specializing in producing and developing various power adapters. The company has perfect production and testing equipment, a first-class sales team, and an independent high-level research and development team. The company's products have passed CCC, cETL 1310, C.E., U.L./Cul, FCC, K.C., SAA, C/tick, CB, TUV/GS, ROHS, and other certifications. The product quality is reliable, stable, and safe. The company's products are widely used in security cameras, set-top boxes, routers, light strips, massagers, and other equipment and are trusted and praised by customers.

The power adapter is a power supply conversion device for small portable electronic devices and appliances, generally composed of a shell, transformer, inductor, capacitor, control I.C., PCB board, and other components. It works by converting A.C. input to D.C. output; it can be divided into wall-mounted and desktop types according to the connection mode1 Power adapters are widely used in industrial automation control, military equipment, scientific research equipment, LED lighting, industrial control equipment, communication equipment, power equipment, instruments and meters, medical equipment, semiconductor refrigeration and heating, air purifier, electronic refrigerator, liquid crystal display, LED lamps, audio-visual products, security, computer case, digital products and instruments, and other fields.

Oushangmei Technology Co., Ltd.: A Professional Power Adapter Manufacturer

Quality assurance, safety, and reliability
Our company's products have passed multiple international and domestic authoritative certifications, including ISO9001 quality management system certification; China's CCC certification; E.U.'s C.B. certification, C.E. certification, G.S. certification, RoHS certification; U.S.'s FCC certification, ETL certification, and U.L. certification; Australia's C-tick certification; and Korea's K.C. certification and KCC certification.

Building a High-Quality Power Adapter Manufacturer
Our production capacity can reach 90,000 units per month. We have a complete production line with plug-in lines, wave soldering, power-integrated testing lines, fully automatic aging rooms, laser engraving machines, high-performance power analyzers, oscilloscopes, and other equipment to build a high-quality power adapter manufacturer.

Customized products for customers
Our company has a professional R&D team of five people, covering talents in various fields such as circuit design, safety evaluation, appearance design, structural design, and technical management. We can plan and design products based on customers' functional needs and provide customized, reasonably configured, cost-effective products.

Customized products for customers
Our company has a professional R&D team of five people, covering talents in various fields such as circuit design, safety evaluation, appearance design, structural design, and technical management. We can plan and design products based on customers' functional needs and provide customized, reasonably configured, cost-effective products.

Shenzhen Oushangmei Technology Co., Ltd. is a leading manufacturer and R&D company that produces high-quality power supplies, including switches, power adapters, LED, waterproof, and more. Oushangmei Technology Co., Ltd. takes quality as life, the customer as the center, innovation as power, and integrity as a foundation, and constantly pursue excellence and improvement. We look forward to establishing a long-term cooperative relationship with you and developing together.

OUSM Adapters Long Service Life

Use Imported IC scheme, Long Life Electrolytic Capacitor Resistant to High Temperature, Small ESR, Small Output Ripple…

Our Happy Clients!

List item 5

List item 5

List item 5

List item 5

List item 5

This was an excellent product and it was delivered on time. Packaging was also excellent. Mr Lee was excellent to deal with we will be reordering from them.

Power adapters are essential accessories for many electronic devices, such as laptops, phones, tablets, routers, etc. They convert the alternating current (AC) from the wall outlet into the direct current (DC) that the device can use. However, not all power adapters are compatible with all devices. Choosing the wrong power adapter can cause damage to the device, the adapter, or even the user. Therefore, knowing how to choose a suitable power adapter for your device is essential.

In this article, I will explain the main factors you must consider when choosing a power adapter, such as polarity, voltage, current, connector size and shape, and protection function. I will also provide tips on finding the specific adapter for your device model or using a universal adapter that can work with multiple devices. Following these guidelines ensures that your device will work properly and safely with the power adapter.

The first factor you must consider is the polarity of the power adapter and the device. Polarity refers to the direction of the electric current flow. The power adapter's connector has two parts: the sleeve and the tip. The sleeve is the outer metal part, while the tip is the inner metal part. The connector's polarity determines which part is positive (+) and negative (-). The device's power input port also has a polarity that matches its internal circuit. If the polarity of the power adapter and the device are different, the current will flow in the reverse direction, which can damage the device or cause a short circuit.
To check the polarity of the power adapter and the device, you need to look for a label or a tag on them that shows a symbol like this:
The symbol on the left means negative sleeve/positive tip, while the symbol on the right means positive sleeve/negative tip. You must ensure that the power adapter and the device have the same symbol. If they have different symbols, do not plug them together. If there is no symbol on either of them, you must use a multimeter or a tester to measure their polarity.

The second factor you must consider is the voltage and current of the power adapter and the device. Voltage is the measure of the electric potential difference between two points, and current is the measure of the rate of flow of electric charge. The voltage and current of the power adapter are marked on its label, usually in volts (V) and amperes (A), respectively. The voltage and current of the device are also marked on its label or in its owner's manual.
The general rule is to match the voltage and equal or exceed the current. The power adapter's output voltage should be the same as the device's input voltage, and the power adapter's output current should be greater than or equal to the device's input current. For example, if your device requires 12 V and 2 A, you need a power adapter that provides 12 V and at least 2 A.
If the power adapter's voltage is higher than the voltage of the device, it can cause overheating, burning, or even explosion. If the voltage of the power adapter is lower than the voltage of the device, it can cause insufficient power, malfunction, or damage to the device. If the current of the power adapter is lower than the device's current, it can cause overheating, melting, or fire to the power adapter. If the current of the power adapter is higher than the device's current, it will not cause any harm because the device will only draw as much current as it needs.

The third factor you must consider is the connector size and shape of the power adapter and the device. The connector size and shape determine whether the power adapter can fit into the device's power input port. There are many connectors, such as barrel, USB, micro USB, mini USB, USB-C, lightning, etc. Each connector type has a different diameter, length, and pin configuration. It would be best to ensure that the power adapter's connector matches the device's connector in size and shape.
To check the connector size and shape of the power adapter and the device, you can either measure them with a ruler or a caliper or compare them visually. You can also refer to the device's owner's manual or look for a label on the device or power supply to find the connector specifications. For example, a barrel connector may have a specification of 5.5 x 2.1 mm, which means that the outer diameter is 5.5 mm and the inner diameter is 2.1 mm.
If the connector size and shape of the power adapter and the device differ, you may need to use an adapter plug or a converter cable. However, it would be best to be careful when using these accessories because they may not be compatible with the voltage and current of the power adapter and the device. You should always check the specifications of the adapter plug or converter cable before using them.

The fourth factor you need to consider is the protection function of the power adapter. The protection function is a feature that prevents the power adapter from overheating, overloading, overvoltage, overcurrent, short circuit, or other abnormal conditions. The protection function can protect the power adapter, the device, and the user from potential hazards. Some power adapters have built-in protection circuits, while others have external fuses or switches.
To check the protection function of the power adapter, you can look for a label or tag indicating the type and level of protection. For example, a power adapter may have a specification like OVP/OCP/SCP, meaning it has overvoltage protection, overcurrent protection, and short circuit protection. You can also refer to the power adapter's owner's manual or look for a certification mark showing it has passed specific safety standards.
If the power adapter does not have a protection function or needs more clarification about its quality, you should be careful when using it. It would help if you did not mix it with high-end electrical equipment like laptops, cameras, or medical devices. You should also use only one electrical appliance whose accumulated power exceeds the rated power of the power adapter on the same socket. You should continually monitor the temperature and condition of the power adapter and unplug it when not in use.
The fifth factor you need to consider is the network adapter priority of your device. The network adapter priority is a setting that determines which network adapter your device will use to connect to the internet when there are multiple available options. For example, if your device has a wired and a wireless network adapter, you can choose which one has higher priority. The higher priority network adapter will be used first, and the lower priority network adapter will be used as a backup or when the higher priority one is unavailable.
To check or change the network adapter priority of your device, you need to access your device's network settings. The steps may vary depending on the type and model of your device, but generally, you can follow these steps:
Go to Settings > Network & Internet > Status > Change Adapter options.
Right-click on the network adapter that you want to change the priority and select Properties.
Click on Internet Protocol Version 4 (TCP/IPv4) and then on Properties.
Click on Advanced.
Uncheck the Automatic metric option and enter a value for the Interface metric. The lower the value, the higher the priority. For example, if you want to prioritize the wired network adapter higher, you can enter 1 for its metric and two or higher for the wireless network adapter's metric.
Click OK to save the changes.
You can optimize your internet connection speed and stability by choosing your device's proper network adapter priority.
This is the end of the article. Have you learned how to choose a suitable power adapter for your device? If you have any questions or feedback, please contact me. Thank you for reading!

Mike Bernasconi

List item 5

List item 5

List item 5

List item 5

List item 5

It works perfectly and good support from Shenzhen Oushangmei. Product was as described and tested excellent. We placed a large order. Thank you!

As a power adapter procurement professional, the selection process involves evaluating various factors to ensure compatibility, safety, and reliable performance. This article discusses the key considerations when choosing power adapters, including voltage compatibility, power rating, connector compatibility, efficiency, safety compliance, durability, international compatibility, and cost. By carefully assessing these factors, procurement professionals can make informed decisions, selecting power adapters that meet the devices' requirements and deliver optimal performance.
Introduction: As a procurement professional responsible for sourcing power adapters, the selection process requires thorough evaluation to ensure the chosen adapters meet the diverse needs of the devices they will power. This article explores the factors that should be considered when selecting power adapters, highlighting their significance from a procurement perspective. By understanding and addressing these factors, procurement professionals can make informed decisions, acquiring power adapters that align with their organization's requirements and deliver reliable and safe performance.
Voltage Compatibility: The voltage requirements of the devices should be carefully assessed. Matching the voltage output of the power adapter with the devices' voltage requirements is crucial to avoid compatibility issues and potential damage. Procurement professionals should verify the devices' voltage specifications and ensure the power adapters provide the required voltage or slightly higher.
Power Rating: Determining the power consumption of the devices is vital in selecting appropriate power adapters. Procurement professionals should choose power adapters with a power rating that meets or exceeds the devices' power requirements. Insufficient power can result in suboptimal performance or device malfunctions, while excessive power can lead to overheating or safety risks.
Connector Compatibility: Procurement professionals should consider the connector type required by the devices. Power adapters should have connectors that fit the devices' power input ports. Different devices may utilize various connector types, such as USB, barrel, or proprietary. Ensuring compatibility between the adapter and the devices' connectors is essential for seamless connectivity.
Efficiency and Energy Saving: Efficiency is crucial in power consumption and cost-effectiveness. Procurement professionals should look for power adapters with high energy efficiency ratings to minimize power wastage and reduce energy costs. Adapters with energy-saving features like standby power reduction or automatic power-off functionality can further contribute to energy conservation.
Safety and Compliance: Procurement professionals must prioritize safety and compliance when selecting power adapters. Adapters such as UL, CE, or FCC should adhere to safety standards and certifications. Compliance ensures the adapters' reliability, electrical safety, and protection against short circuits, over-voltage, or over-current situations. Procurement professionals should verify the certifications and ensure the adapters meet all necessary safety requirements.
Durability and Reliability: Procurement professionals should assess the quality and durability of the power adapters. Choosing reputable brands or suppliers known for producing reliable products can enhance the longevity and performance of the adapters. Reading customer reviews, evaluating the manufacturer's warranty, and considering the build quality are essential to ensure durable and reliable power adapters.
International Compatibility: If the devices or adapters are used internationally, procurement professionals should consider the input voltage range supported by the adapters. Universal power adapters with a wide input voltage range (e.g., 100-240V) are ideal for international use, as they can accommodate different power standards and voltages across various countries.
Cost and Budget: While considering all the abovementioned factors, procurement professionals must also evaluate the cost-effectiveness of the power adapters. Comparing prices from different suppliers and brands is essential, but it should be balanced with the desired quality, features, and specifications. Procurement professionals should strike a balance between cost and meeting the required criteria.
Conclusion: The selection of power adapters requires careful consideration of several factors, ranging from voltage compatibility and power rating to connector compatibility, efficiency, safety compliance, durability, international compatibility, and cost. Procurement professionals are critical in ensuring that the chosen power adapters align with the devices' requirements, adhere to safety standards, and provide reliable performance. By meticulously evaluating these factors, procurement professionals can make informed decisions, acquiring power adapters that meet the organization's needs, foster compatibility, ensure safety, and deliver optimal performance.

ANTHONY MARTIN

List item 5

List item 5

List item 5

List item 5

List item 5

The performance of adapter is great.Kind and quick response. Good price, quick delivery to The Netherlands. We will buy more from you very soon. 👌👌👌

This article delves into the different voltage options available in power adapters, including 5V, 12V, 24V, and others. By understanding the characteristics and applications of these voltages, users can make informed decisions about selecting the appropriate power adapter for their specific needs.

Power adapters are indispensable connectors between power sources and electronic devices, providing the required voltage for proper functionality. Voltage is crucial in determining the power adapter's compatibility and ability to meet the device's power demands. This article explores the significance and applications of different voltage options in power adapters, including 5V, 12V, 24V, and others.
The Importance of Voltage in Power Adapters: Voltage refers to the electrical potential difference between two points measured in volts (V). Power adapters must supply the correct voltage to match the requirements of the connected device. Incorrect voltage can lead to device malfunctions, reduced performance, or permanent damage. Understanding the different voltage options allows users to select the most suitable power adapter for their devices.
5V Power Adapters: Power adapters with a voltage output of 5V are commonly used for various electronic devices, such as smartphones, tablets, and portable media players. The lower voltage is suitable for devices that require less power, ensuring their safe and efficient operation. USB chargers and adapters often provide 5V output, allowing universal compatibility across various devices.
12V Power Adapters: Power adapters with a voltage output of 12V are frequently utilized in applications such as routers, CCTV cameras, and LED lighting. These devices typically require a slightly higher voltage to meet their power demands. The 12V power adapters offer a reliable and stable power supply for such equipment, ensuring optimal performance and longevity.
24V Power Adapters: Power adapters with a voltage output of 24V are commonly found in devices such as printers, industrial equipment, and motorized appliances. These devices often require higher power levels to operate effectively. The 24V power adapters provide the necessary voltage to meet their specific requirements, enabling reliable and efficient operation.
Other Voltage Options: Apart from the standard 5V, 12V, and 24V power adapters, various other voltage options are available. These include 9V, 15V, 18V, and 36V power adapters. Each voltage option caters to specific device requirements and applications. It is crucial to consult the device's specifications or user manual to determine the optimal voltage range for proper functionality.
Selecting the Right Power Adapter Voltage: To select the appropriate power adapter voltage, consider the following factors: a. Device specifications: Review the device's documentation to identify its voltage requirements. This information is typically provided in the device's manual or on the product label. b. Power demands: Assess the power demands of the device to determine the suitable voltage range. Consider the device's power consumption, components, and intended usage to make an informed decision. c. Compatibility: Ensure that the power adapter's voltage output matches or is slightly higher than the device's voltage requirement to avoid underpowering or overpowering the device.
9V Power Adapters: 9V power adapters are commonly used for audio devices, small electronic instruments, and toys. These devices typically require lower voltage; a 9V power adapter can provide adequate power support.
15V Power Adapters: 15V power adapters are often used for laptops, audio devices, and other small to medium-sized electronic devices. Particular laptops and audio equipment models may require 15V voltage to meet their high-power demands.
18V Power Adapters: 18V power adapters are frequently utilized for audio devices, musical instrument effects, and specific industrial equipment. Some audio devices and instrument effects require a higher voltage to deliver increased audio output and signal quality.
36V Power Adapters: 36V power adapters are commonly used in industrial equipment, wireless communication devices, and surveillance cameras. These devices often require a higher voltage to meet their power and functionality requirements.
These are just a few examples of commonly used voltage options. Many more voltage supply choices are available based on different devices and application requirements. When selecting a power adapter, it is essential to refer to the device specifications and user manual to determine the required voltage and power requirements and choose an adapter that matches those specifications.
Conclusion: The availability of different voltage options in power adapters allows users to cater to a wide range of electronic devices and applications. Understanding the significance and applications of various voltage options, such as 5V, 12V, 24V, and others, is crucial in selecting the appropriate power adapter for optimal device performance. By considering device specifications, power demands, and compatibility, users can make informed decisions when choosing power adapters, ensuring a reliable and efficient power supply for their electronic devices.

JERRY FREEMAN