Eathtek Replacement Twin Socket 12V Waterproof ATV UTV Car Truck Cigarette Lighter Power Adapter Can be used as GPS charging, cell phone charger, Car MP3 power supply, car vacuum cleaner, car tire inflation power, etc. Connect the red wire to the brass post & connect black wire to the silver one. With fuse built-in the red wire for safety. All pictures are taken from the real item, please check carefully before bidding.