This is a cool little thing for anyone that is hooking up a PS2 or Xbox or anyother system in the car. Also can be used to plug anything into it. This plugs in the cigarette lighter and you plug a AC power cord into it. Lets you run AC appliances from any 12V cigarette-lighter socket; converts 12V DC battery power to 120V AC power. Still works, only used a few times to play Xbox on my screen. It is 175watts.