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The global AC DC converter market is undergoing a seismic shift towards high energy density and miniaturization. As a leading manufacturer, we are integrating Gallium Nitride (GaN) and Silicon Carbide (SiC) semiconductors to achieve efficiency rates exceeding 95%, meeting the stringent requirements of ErP Lot 6 and DoE Level VI.
Shenzhen FuYun (RUIYU) leverages the unparalleled industrial ecosystem of the Pearl River Delta. With over 800 skilled workers and 48 production lines, we ensure a 15-day lead time, providing a critical hedge against global supply chain volatility for our international partners.
Quality is our bedrock. Our manufacturing facilities are ISO9001:2015 certified, and every unit undergoes 100% full-load aging tests. We maintain complete traceability for years, ensuring compliance with UL, CE, TUV, GS, CCC, PSE, and SAA standards.
Traditional analog AC DC converters are rapidly being replaced by digitally controlled power supplies. This allows for real-time monitoring of voltage, current, and temperature, enabling predictive maintenance and higher reliability in mission-critical applications such as medical life-support systems and automated industrial robotics.
At Shenzhen FuYun, our R&D team is focusing on:
Our adapters provide the critical 2xMOPP isolation required for patient-connected equipment. In European and American hospitals, RUIYU adapters power bedside monitors and portable diagnostic tools with zero failure tolerance.
Designed for the "Smart Factory," our open-frame AC DC converters handle wide temperature fluctuations (-20°C to +70°C) and provide stable power to PLC controllers and HMI panels in high-noise environments.
With the rise of USB-C PD (Power Delivery), we offer smart power strips and wall-mount adapters that dynamically negotiate power requirements for everything from high-end laptops to low-power IoT sensors.
Location: No.129 of the first industrial zone, Lisonglang Community, GongmingTown, Guangming New Disrtrict, Shenzhen, Guangdong, China.
Established in August 2010, Shenzhen FuYun(RUIYU) Technology co., LTD. is a collection of R&D, production, sales power adapter, charger, hairdressing instrument high-pressure core parts and after-sales service.
The company has more than 800 employees, has morn than 30 management staffs, and has a series of advanced automation equipments and various advanced testing instruments and reliability test equipment.
We standardize the SOP, testing each product according to the safety standard requirements and quality system, to make sure all adapters 100% passed before package and shipping. We always focus on our company goal "High quality, Better pricing and Best service" to satisfy our all customers needs!
RUIYU Technology has modern production equipments and testing instruments. Our lead time is 15 - 20 days after we received the confirmed order. To make sure all adapters must be met our high quality standards, we have 30 QA / QC staffs.
We strictly follow up the ISO9001 and our SOP to make all adapters have to pass full times testing before packing and shipping out. We keep production recordings for years to ensure 100% traceability for every unit produced.
Quick response to any requirements within 24 hours through our oversea sales team.
Offer 2-5 pcs free samples to customers for function and compatibility testing.
Good lead time: 15 days only after confirmed the PO, supported by 48 active production lines.
Highly customized power solutions tailored to your brand's specifications. 0.1% of total order quantities provided for backup.








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In the competitive arena of electronics manufacturing, the reliability of a power supply is often the deciding factor in the longevity of the final device. An AC DC converter is not merely a component; it is the heart of the machine. At Shenzhen FuYun (RUIYU) Technology, we recognize that our reputation is built on the stability of every single unit that leaves our factory floor.
Our commitment to E-E-A-T principles starts at the raw material selection phase. We partner only with reputable component vendors who can guarantee the lifespan of capacitors and the purity of copper windings. This meticulous attention to detail ensures that our converters maintain their performance even after years of continuous operation.
Furthermore, the global shift toward "Green Energy" has redefined manufacturing standards. We are not only focused on power output but also on environmental impact. Our R&D department is constantly innovating to reduce the carbon footprint of our manufacturing process, optimizing energy usage across our 48 production lines.
As we look to the future, the integration of GaN technology represents the next frontier. By reducing the physical size of converters while increasing their efficiency, we are enabling a new generation of portable and wearable devices that were previously limited by battery life and heat dissipation. RUIYU remains at the forefront of this technological revolution, ensuring our clients always have access to the most advanced power solutions available on the market.
Ultimately, choosing a China AC DC converter manufacturer like RUIYU means choosing a partner dedicated to your success. From the initial design phase to global distribution and after-sales support, we provide a seamless experience designed to help your business grow in an increasingly complex global marketplace.