made in china Inverter From China, 500W , Output 110/220V easy to ... , the power supply switch can be completely cut off the internal circuit, so can protect battery from being damaged.4 ... v, it would automatically shut off, ensure the battery has enough power start vehicles.5. Overheating or ... , resistance to oxidation and beautiful shape. made in china Inverter From China, 500W , Output 110/220V