Product description AC to DC Converter 12V 10A 120W Car Cigarette Lighter Socket Power Adapter Still worrying about this, you have 12V vehicle equipment, because of the limitation of 12V DC power supply, don't you use it much? You can use almost all common vehicle electronic equipment such as air compressors, tire inflators, oxygen makers, refrigerators, TVs, vacuum cleaners and other devices used with this type of connector. Plug your unit's cigarette lighter adapter into this charger's standard 12-volt cigarette lighter receptacle. Then plug the charger into a wall outlet to charge your unit.