Founded in 2002, Shenzhen GreatPower Tech Co., Ltd. has been keeping producing high frequency Laptop Adapter,Power Adapters, Switching Power Supplies. We have accumulated rich experience in production, research and development, which makes us have enough capability to produce high quality adapters. Shenzhen GreatPower Tech Co., Ltd. is a professional and leading manufacturer of Laptop Adapter ,Power Adapters can be used in Portable DVD,Digital Photo Frame,GPS,Monitor Equipments,Electrical ...