1500VA/900W,3xoutput socket, Input Voltage 110/ 115/120Vac or 220/230/240Vac, Input Voltage Range 81-145VAC or 170-280VAC, 50 Hz/60Hz(Auto sensing), Output Voltage 110/ 115/120Vac or 220/230/240Vac, AC Voltage Regulation 10, Frequency Range 50Hz 1Hz, Transfer time Typical 2-6ms, Internal maintenance-free lead-acid battery, 12V/9Ah x2, Weight (kg) 10.5, Dimension,DxWxH(mm) 350x146x160, Recharge Time 4-6 hours recover to 90 capacity, LED display, Optional USB/RS232 Port Supports Windows 2000 / 2003 / XP / Vista / 2008, Windows 7/8 Linux Unix and MAC