GaN Fast-Charger Manufacturer
Your GaN fast-charger manufacturing partner — with self-developed GaN chips and in-house R&D since 2009. OEM & ODM, 30W to 140W.
Dongguan Rongjun Electronics Co., Ltd. is a high-tech enterprise specializing in R&D, design and manufacturing of power supplies and chargers. Leveraging self-developed GaN main chips and proprietary PCBA solutions, we achieve superior efficiency, thermal management and cost control. Our fully integrated intelligent automated production lines — covering SMT, THT, assembly, testing and shipment — ensure consistent product reliability through standardized manufacturing.
At present, we have developed 30W – 140W GaN fast chargers, and all products have passed mandatory CCC certification as well as international certifications (CB, CE, RoHS, FCC, UL reports). OEM/ODM deep customization services are also offered. Our current focus is the GaN ultra-thin charger: with a proprietary one-piece transformer, the re-engineered flat-elongated PCBA (shaped like a biscuit) gives the series its “biscuit charger” nickname, pioneering ultra-slim PD fast charging.
Looking ahead, we will continue advancing GaN innovation and technologies, striving to become a global leader in efficient, safe and green charging — delivering cutting-edge fast-charging technology worldwide.
From self-developed GaN chips to fully automated production, we control every step — so you get better efficiency, consistent quality and faster time to market.
Our own GaN main chips and PCBA solutions deliver superior efficiency, thermal control and cost advantage — not off-the-shelf parts.
A one-piece transformer and re-engineered flat PCBA power our “biscuit” series — pioneering the slimmest PD fast chargers on the market.
Intelligent lines covering SMT, THT, assembly, testing and shipment ensure consistent reliability through standardized manufacturing.
Every unit is aging and hi-pot tested. Full CCC, CB, CE, RoHS, FCC, UL and ETL documentation for the markets you sell into.
Deep customization of housing, color, plug standard, packaging and logo — with low MOQ so you can launch your own brand with confidence.
Samples in 7–10 days and reliable worldwide shipping with export and certification support, so your timeline stays on track.
We develop our own GaN main chips and PCBA. Paired with a proprietary one-piece transformer, our re-engineered flat “biscuit” board delivers full-power fast charging in the slimmest form factor on the market — with less heat and higher efficiency.
From concept to shelf-ready product. We handle custom housing, colors, packaging, logo printing and firmware — so you launch faster with lower risk.
Send us your model, wattage, quantity and customization needs. We reply with a quote within 24 hours.
We produce samples in 7–10 days for your approval — including custom housing, color and logo.
On confirmation, our automated lines produce your order with full aging and safety testing.
We handle worldwide shipping, export documents and certification support, right to your door.
All Rongjun products are tested and certified for safety and compliance in the markets you sell to.
Mandatory certification for electrical safety in the Chinese market.
IEC-based report recognized across member countries worldwide.
Meets EU safety, health and EMC directives for the EEA.
Meets US limits for electromagnetic interference.
Underwriters Laboratories testing for electrical safety.
Intertek ETL listing for the US and Canadian markets.
Lead-free, environmentally responsible components.
Additional market-specific marks for OEM/ODM projects.
Whether you need our ready-made models or a custom OEM / ODM line, send us your requirements and get a quote within 24 hours.
