Details Capacity : 600VA (300W) 1200VA (600W) AC Input Voltage : 140 – 300 V AC Input Current : 1.6 A 2.9 A AC Input Frequency : 50 ± 10 % AC Input Protection Fuse : 3 A 6 A DC Input Internal Battery : 1 x 12 V, 7.2 Ah 2 x 12 V, 7.2 Ah Inverter Output Waveform : SYNTHESIZED SINEWAVE (STEP WAVE) Inverter Output Voltage : 230 ± 10% Inverter Output Frequency : 50 ± 1 Hz Charger Type : CONSTANT VOLTAGE Charger Voltage : 13.5 V 27 V Charger Current : 1.4 A Transfer Time : 2 ~ 10 ms Back Up Time : 7 ~ 20 min Indicator: LCD & BUZZER Operation Temperature : 0 – 40 °C Dimension(DxWxH) : 298 x 101 x 142 mm 353 x 150 x 162 mm