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Best 5 power supply Manufacturers China 2024


In the world of electronics power supplies play a role by ensuring a reliable flow of energy to power our devices. They are, like heroes powering everything from LED lights to charging batteries and supporting electronic systems.

The importance of AC DC adapter

One important component in this process is AC/DC adapters, which serve as a bridge between power sources. These adapters are specifically designed to convert the alternating current (AC) from outlets into current (DC) which is suitable for powering various electronic devices. From laptops and routers to gadgets like smartphones AC/DC adapters prove their versatility and indispensability, in our lives.

The value of Battery charges in fast life

In today’s era of devices battery chargers play a role, in ensuring our gadgets remain powered while, on the move. Let’s delve into the workings of battery chargers and how they intelligently handle the charging process allowing us to extend battery life and conveniently cater to our lifestyles.

LED Drivers for the longevity of your Leads

LED drivers are essential to the colorful and energy-efficient world of LED lighting. LEDs are intended to operate on direct-current, low-voltage (12–24V) power. Nonetheless, most locations have greater voltage (120–277V) alternating current power. Higher voltage alternating current is rectified to low voltage direct current via an LED driver. Additionally, these drivers shield LEDs from changes in voltage or current. Because any variation in voltage has the potential to alter the current that is given to the LEDs.

Importance of reliable Power supply

The elements of power supply units (PSUs) play a vital role in the continuous supply of power to electric components of many devices. A reliable power supply that meets the needs of energy requirements of electronic devices is required to save devices from any damage or voltage change. Whether it is a desktop computer that relies on a power source or a sophisticated electronic system that necessitates an energy supply power supply units play a vital role, in ensuring the smooth operation and functionality of these electronic devices.

In the changing world of electronics power supplies play a role, in ensuring our devices function smoothly. They convert currents, power up LEDs, and charge batteries. AC/DC adapters, LED drivers, and battery chargers are vital components that we rely on every day. Many power supply units offer solutions for it.

Here are the Best 5 power supply manufacturers in China in 2024.



Established in 2005, QINXPOWER® stands as a prominent manufacturer in China, specializing in standard power supply products. With headquarters in the USA, a global sales center in Shenzhen, and a production factory in Dongguan, Guangdong Province, our focus spans power supplies ranging from 1-400W. Our product line includes power adapters, LED drivers, battery chargers, and switching power supplies. We specialize in designing and developing power supplies compliant with international standards such as EN62368, EN61558, EN60601, EN60335, EN61347, and more. Our products carry certifications like UL, ETL, CE, GS, UKCA, SAA, RCM, EAC, PSE, KC, CCC, BIS, ensuring global compliance and application in information technology.




With over two decades of experience, Sunshine Electronics is a reputable AC adapter manufacturer with factories in China and Vietnam. Our extensive industry expertise reflects our strength in delivering quality products. Our diverse product range encompasses plug wall adapters, laptop power adapters, and USB C power adapters. We specialize in offering both OEM and ODM services, providing flexibility for your specific needs. Whether you require a switching adaptor for LED lights, batteries, TVs, computers, monitors, cameras, or a portable travel adapter, we have you covered. Whether you seek custom designs or modifications to existing products, our team is dedicated to meeting your requirements with precision and excellence.

48V 1A Power Supply AC-DC Desktop Power Adapter

Meepo Voyager + Free Cycolne 105s Wheel Set

3, Ainuo Instrument Co., Ltd



Founded in 1993 in Shandong, Ainuo Instrument Co., Ltd. has established its own industrial parks in Jinan and Qingdao. Over the past 30 years, Ainuo has dedicated itself to the research and development, as well as the production of various electrical measuring instruments, test power supplies, and special power supplies. The company has been recognized for its commitment to scientific research and technological innovation, earning accolades such as National High-tech Enterprise, Shandong Provincial Enterprise Technology Center, Shandong Gazelle Enterprise, and more. Ainuo places a strong emphasis on corporate social responsibility, serving as a director unit for Shandong Scientific Industry Association for National Defense and Shandong Institute of Aeronautics and Astronautics. The company actively contributes to the development of the corresponding industry.

AC Testing Power Supply

Programmable DC Power Supply



P-DUKE, established in 1992 and based in Taiwan, is a company dedicated to the research, development, and production of high-performance power conversion products. Specializing in DC/DC converters, AC/DC power supplies, and custom power conversion solutions, P-DUKE focuses primarily on the railway and medical markets. These sectors demand the highest product quality and compliance with relevant application standards. P-DUKE has a global presence, with its main business operations spanning Europe, America, and the Asia Pacific region. The company’s commitment to innovation and quality has positioned it as a key player in the power conversion industry, serving critical sectors where reliability and adherence to stringent standards are paramount.

Thru-hole 6-500W

Enclosed 40-450W

5, FranMar International Inc.


FranMar International Inc., established in 1997, stands as a prominent switching power supply manufacturer based in Taiwan. Specializing in the production of a diverse range of power supply solutions, FranMar manufactures AC/DC Switching Power Supply, including Desktop Adapters, Wall Mount Adapters, Enclosed Power Supplies, Open Frame Powers, and U-Channel Powers. Additionally, the company offers Medical Power Supplies, Din Rail Power Supplies, LED Drivers, and power supplies for I.T.E applications. Over the years, FranMar International Inc. has experienced rapid growth, establishing itself as one of the leading suppliers of switching power supplies in Taiwan. The company is committed to providing high-quality products and efficient services to save customers’ time and resources. FranMar takes pride in offering quick and suitable solutions to meet the diverse demands of customers in various applications, showcasing its dedication to customer satisfaction.

E03 – 1.98~3 Watts DC-DC Converter

A301-150W – 150W DC AC Modified Sine Wave Inverter