... Characteristics:With fixed frequency control circuit , it provides with over voltage,over current ,overheatand short circuit protectionUltra low no-load/standby ... all related safety standardSuiable for mobile phones, LCD monitor ,gamer,protable DVD player, scanner etcReliability:High voltage test:3000Vac 60S 5mA ... AC100-240VAC/50-60HzOutput:3.0-30VDC/0-1000mA version Mobile Phone battery Adapter 5V 1A