Shenzhen Yidashun Technology Co., Ltd was founded in 2007, We are a manufacturer specialized in laptop adapter and Ac DC Power Supply for 8 years, And dedicated to producing laptop Adapter, Universal laptop adapter, 12V desktop Adapter for LED/CCTV, AC DC Power Adapter, Wall adapter, Metal case Switching power supply for LED/CCTV, Car Charger and so on, Our products with CE, FCC. ROHS. ERP. CB Certificate.