All you need to do is to plug this product into your home power supply and then connect your car equipment to its cigarette lighter socket. It comes with a 35.43 -inch long power cable, which can extend the distance of your use and expand the scope of your application environment.
It is suitable for any car electronic devices with cigarette lighter plug, as long as the power of them is less than 24W, such as car mp3 player, car air humidifier, car e-dog, etc. Vacuum cleaners, car pumps, waxers and other high power devices can't be connected to realize home use.