... 4A 5v 4a ac adapter Spec. as following, Oupt power range5v 3a ,5v 4a,5v 5a, 12v 2a,9v ... minuteSafety protectionoutput voltage protection (150%-180% rated output current)output current protection (150%-180% rated output current)short current protectionOperating Temperature0°C - ... components; good quality PC+ABS fireproofing raw material 6.100% full load burning test, every aging test lasts more ...