Dimension (DxWxH) : 450 x 350 x 87 mm Weight : 20 Kg Capacity : 1200 VA / 600 W AC Voltage : 160 ~ 250 V AC Frequency : 50 3 Hz AC Protection : 6.3 A DC Voltage : 24 V DC INT Battery : 2 x 12 V 7 Ah DC Protection : Fuse INV Waveform : Sinewave INV Distortion : < 3% THD INV Topology : Pulse Width Modulation (PWM) INV Voltage : 220 2% V INV Frequency : 50 1% Hz INV Efficiency : 80% CHG Topology : Constant Voltage CHG Floating Voltage : 27.2 V Transfer Time : < 4 ms Back up Time : 10 min BZR AC Input Low / Fail : Intermittent Sound With 4 Seconds Interval BZR AC Input High : Intermittent Sound With 1 Second Interval BZR Battery Low : Intermittent Sound With 1 Second Interval Operation Temp : 0 ~ 40 C