The BI84002 Power Inverter is power on the go! Simply plug this unit in to your auto's cigarette lighter receptacle or hook directly to your battery using the alligator clips and you'll have an AC outlet whenever and wherever you need it. The powerful 400 watt inverter is ideal for laptop computers, power tools, cell phone, TV's, DVD players, stereo's, CD players, computers and more! Unit also features a built-in cooling fan, an On/Off switch with LED indicator light and is compact enough to fit in your center counsel or glove box.