·Anodized alluminum case provides durability & max heat dissipation ·DC cigarette lighter accessory plug and heavy -duty cable clamps for high-output direct battery connections both included. ·Automatic restart function. ·USB output port : 5V500mA (optional ) ·ON/OFF switch control the inverter by hand ·The inverter is compact , light weight and easy to operate. ·Loads can be powered directly from the AC outlets. ·The inverter is equipped with numerous protection features to guarantee safe and trouble-free