Great for emergency backup power to keep the lights on and refrigerator running for hours. This is a 2000-watt inverter with a 4000-watt surge that is mounted on a hand truck for portability. This unit comes with a 100-amp lithium battery and charger. Also, this unit comes with a small charge controller to connect to solar panels for added charging capabilities. Solar panels not included but available. 200-watt panels for added cost of $150 each.