... two in one charger,UL 5V 1A Changer,AC-DC charger 5V 1A 2 in 1 USB ... adapter with UL Product characteristics;1)Input:AC100-250Vac/50- ... ,scanner , route, medical equipment etc . Reliability High voltage test3000Vac 60S 5mA maxInsulation Resistance7 minOperating Temperature0--50 ... degree.Storage Temperature-40--85 degree.Burn-in test80%--100%Safety Approval StandardUL/CUL/FCC/ ...