APC BV 1000VA, AVR,IEC Outlet, 230V Easy UPS (BV1000I) - Max Configurable Power (Watts): 600 Watts / 1.0kVA, Input frequency: 50/60 Hz +/- 5 Hz Auto-sensing, Output Frequency (sync to mains): 50/60 Hz +/- 1 Hz Unsynchronized, Transfer Time: 6 ms typical : 10 ms maximum, Number of Power Cords: x 1, Expected Battery Life: 3 - 5 years