Pure sine wave power inverter 500W for home car boat with dual USB1、500W Inverter: This is an inverter converting DC from your car battery to AC, 500W continuous power, 1000W surge, soft start technology. 2、Pure Sine Wave: Power inverter delivers a smoothly varying sine wave for sensitive electronics provided by the electric utility. 3、Multiple Protections: The vehicle inverter provides overload, over temperature, high voltage, low voltage, short circuit and internal melting protection. 4、Dual USB Ports: 2 USB charging ports charge electronic devices such as laptops, tablets, etc., providing faster charging speed. 5、Heat Dissipation: The cooling fan automatically shifts according to power load and temperature, reducing fan noise and preventing overheating. 6、Wide Application: Ideal backup or off grid power system for homes, boats, cabins, solar, buses, vans and cars, ensure long battery life.