Nominal power: 480 W ; Apparent Power: 800 VA ; Battery: 1 pcs ; Estimated battery operation time: ≤ 20 minutes - depending on the load ; Number of outputs: 2 pcs ; Operation state indication: LCD display: operation mode, battery charging level, in/out voltage level, Work load, Overload signaling, Failure signaling, Low battery level alarm, Sound signaling ;