TechnologyOn line Double Conversion IGBT with Micro-controlerCapacity6KVA /4.2KWBattery12V/ 7Ah x 20pcsRecharge time7 Hours to 90% of full capacity after full load DischargePower InputAC 176 V- 276V , 50/60 Hz +/-8%Power Output220 or 230VAC, 50/60Hz ...