specialized in the R&D and manufacture power supplies with 10 years experience clients:Yamaha,Sharp,Hitachi 3 ... 100V-240V,50/60HzRange Voltage:AC 90V-130V,47/63HzOutput Power:3WOutput Voltage:3V-12VOutput Current:0.25A-1AOver Current Protection ... *W*H) SAFETY:UL/CUL, PSE-MARK,CCC 3W usa plug adapter,mini usb power adapter, wall mounted