Product DescriptionPerfect for sport fishing and ski boats, the ProSport Power Inverter fits in your cup holder, instantly converting 12V DC battery power to 110V AC power for laptops, radios, cell phone chargers, and more. Extruded aluminum case with universal cup holder design. Safety features include power/status LED indicators, output short and input polarity protection, low battery shutdown, and over temperature and overload protection. High 250 watt surge capacity. 6"H x 2-5/8" dia. Cable: 3'L.