Converts vehicle power to a peak output of 240W for use with household items. Features one standard 120V AC outlet and dual USB charging ports (3.1A shared). High-speed, built-in fan provides cool, constant operation. Built-in protection from overloads, short circuits, overheating and high/ low voltages result in multiple level of safe operation. With thermal protection the unit shuts down if operating temperature range is exceeded. Surge protection protects against excessive current fluctuations. Short-circuit protection prevents damage from incorrect wiring or installation. 3ft cable cigarette plug with built-in replaceable fuse. Spill and slip resistant rubber boot. Designed to fit into your vehicle's cup holder. Power / fault LED indicator.