1, UPS Inverter 2,With built-in AVR function 3,Input voltage range: 140V~275V 4,Output: 220V, 50/60Hz 5, LED graphic With Powerhero EPSI series pure sine wave UPS(inverter) integrated Frequency automatic tracking technology, gives the best power solution for your requirement. Especially design for modern office or house.Applications:Television, refrigerator, air condition, computer, electric fan, ...