... .it can drive AC,refrigerator,with RS232,SNMP HOME UPS(POWER INVERTER)1,INPUT voltage rang :90v-280v,2,with four -steps ... pure sine wave7,Has CE , ISO certificate8,protection against short-circuit, overload9,when the mains come, it willl start the unit ... . 36V, 48V, 96V, 240V, 110V DC voltage (optional). Home UPS(inverter)