The headquarter of Develop (HK) International Holding Group Co., Ltd. is located in the most prosperous city of Asia-Hong Kong. Our company is one of the largest professional transformer, adapter, switching power supply, led power supply, electronic ballast manufacturers.

  We have our own production base which named Guangzhou Huayun Electrical Co., Ltd. located in Guangzhou, China which made up of three factories.

 The first factory is specializing in transformer such as toroidal transformer, EI transformer, single phase transformer, three phase transformer, control transformer and audio transformer.

 The second factory is specializing in lighting power supply such as electronic transformer, electronic ballast, led driver and led power supply.

  The third factory is specializing in linear adapter, switching adapter, laptop adapter, car adapter and switching power supply.

   With many years effort, we have had rich experience in development of electronic products. In order to meet market demand and provide quality products, we have established a set of scientific and feasible cost control system from purchasing to production and a set of strict quality control system from raw materials to products .Our products have got CB,UL,FCC,CE,KC,PSE,TUV/GS,BS,SAA,C-Tick, RoHs, LVD and EMC  approval.

 Our products are widely used for many products such as machinery equipment ,audiovisual Equipment, security monitoring, network, multi media digital, electric tools, medical equipment, vehicle mounted electrical appliance, LED lighting , LCD display etc.

   Because of our good quality, favorable price and good service, our products and our company enjoy a very high reputation in Europe, U.S.A, Australia and Asia Market.