specialized in the R&D and manufacture power supplies with 10 years experience clients:Yamaha,Sharp,Hitachi 2 years warranty INPUT/ ... Relative Humidity:5 ~ 95%RHStorage Temperature:-20 ~ 85 °CWithstanding Voltage:AC 3000V/Min (between Input & Output),10mA(Max.)Insulation Resistance:DC500V ... *H) SAFETY:UL/CUL, PSE-MARK,CCC 3W 5V 200mA adapter folding plug,wifi adapter for hdmi