Wagon Smart AC 150 USB power inverter. It converts 12V DC power from a vehicle's cigarette lighter socket to 110V-120V AC power for electronics. It provides 150 watts of continuous power and 300-450 watts of peak surge power. Features include one grounded AC outlet and one USB power port. It is suitable for charging laptops, DVD players, smartphones, and tablets. Safety features include overload, short circuit, and low/high voltage protection.