TechnologyOn line Double Conversion IGBT with Micro-controlerCapacity3KVA /2.1KWBattery12V/ 7Ah x 8pcsRecharge time5 Hours to 90% of full capacity after full load DischargePower InputAC 110 V- 300V , 50/60 Hz +/-8%Power Output120 or 230VAC, 50/60Hz ...