Input Voltage 220 VAC Voltage Range 162-270 VAC Frequency Range 60 Hz Output AC Volt. Reg. (Batt. Mode) ± 10 % Freq. Range (Batt. Mode) 60 Hz ± 1 Hz Transfer Time Typical 4-8 ms Waveform (Batt. Mode) Simulated Sine Wave Battery Batt. Type & Number 12 V / 7 Ah x 1 Typichal Recharge Time 6 Hrs. up to 90 % Protection Full protection “Overload / Discharge / Overcharge” Indicators AC Mode Green Lighting Batt Mode Green Flashing Fault N/A Alarm Batt Mode “Sounding 10 Secs” Low Batt “Sounding every second” Overload “Sounding 0.5 sec” Fault “Continously Sounding” Physical Dimension “DxWxH 279x101x142″ Net Weight (kgs) 4.2 Management “(Optional USB-RS232 Port) Windows 2000/2003/XP/ Vista/ 20008/Windows 7 Linux, Unix and MAC” Run Time Table Load Type “1xPC + 1×17″” LCD 2xPC + 2×17″” LCD” Runtime 10-15 mins