The 3kw off grid solar system is usually for home use where there is no grid or grid is unstable. It can supply power to normal home loads such as washing machine, LED lights, fan, air conditioner. Inverter power: 3kW AC output voltage: AC110V/120V Battery voltage: DC24V or DC48V Battery type: Gel battery or LiFePO4 battery Solar panel type: Mono or poly Compatible with grid and generator Monitor: WIFI or GPRS