The cigarette lighter receptacle in an automobile, was originally used to power the electric heating cigarette lighter, and later became a de facto standard DC connector to provide power for portable accessories in or near the automobile. The cigarette lighter socket is a common feature of automobiles. As a DC power connector, its disadvantages are low rated current and poor contact stability.
Devices that can be operated from the cigarette lighter receptacle include lights, fans, beverage heating devices, and small power tools such as gas compressors to inflate tires. Many portable electronic devices, such as music players or mobile phones, use lighter receptacles to charge internal batteries or operate directly from the car's electrical system. The adapter of the electronic device can change the voltage to be compatible with the provided device. Devices that require alternating current can be operated by plug-in inverters.
