Cigarette Lighter Adapter, Car Cigarette Lighter Female Socket Cable Power Adapter Connector The cigarette lighter connector is applied to car cigarette lighter, power supply change over. The household switching power supply with 5.5MM*2.1MM male can be directly converted into a standard car . It is convenient to connect some devices with car interface, such as car , car vacuum cleaner, car washing machine and so on. The conductor of our cigarette lighter adapter is a 0.75mm copper core with a maximum current of 10A. DC5.5mm*2.1mm power female plug *1, car mother seat *1.