Super Power Supply&Acirc; Car Cigarette Lighter Female Socket to 5.5mm x 2.1mm 5.5x2.1 Barrel Connector Plug Adapter One end is a female car cigarette lighter adapter and the other end is a female 5.5mm x2.1mm adapter Allows for conversion of car/cigarette lighter power supply to be used with a wall power supply. Warranty: 1 Year Super Power Supply are manufactured and tested to match or exceed OEM products. Trademarked by Super Power Supply. Sold exclusively by Super Power Supply