Duracell DRINVPS175 Black 175 Watt Portable Power Inverter The Duracell 150 Watt Portable Power Inverter allows you to use your AC and USB powered devices in your car when connected to your vehicles DC outlet Slim design with one AC outlet and one 2.1 Amp USB port Safety features include AC input overload and short circuit protection, DC input over/under voltage protection, and over temperature protection