http://www.tuncmatik.com/ru/product/overview/digitech-pro-650va.html Product Code TSK1575 Capacity / Power 650 VA / 360 W Display LCD Panel Input Voltage 220 / 230 / 240 VAC Voltage range 162-265 VAC Frequency 50 / 60 Hz ± 10% Output Voltage 220 VAC Voltage range ± 10% Frequency range (Synchronized) 50 / 60 Hz ± %4 Frequency range (Battery mode) 50 ± 0.25 Hz - 60 ± 0.3 Hz Transfer time 2 - 6 msec, 10 msec max. Waveform Simulated sine wave Output connection 2 x Schuko Battery Type & number of battery 12V 7Ah x 1 Charge time 4-6 hours for recharging up to 90% capacity Charge voltage 14.0 VDC Charge current 1.0 A Indicators & Alarm LCD indicator AC mode, Battery mode, Fault conditions Alarm Battery mode, Low battery, Overload, Fault Management USB communication port Windows¨ 98/2000/2003/XP/Vista/2008, Windows¨ 7/8, Linux, MAC RJ11 protection port Phone - Modem Protection Dimensions & Weight D x W x H (mm) 321 x 123.5 x 163.5 Net weight (kg) 4.4