T Tocas Waterproof 5V USB Cell 12V Motorcycle Auto Moto Cigarette Lighter & USB Port Integration Handlebar Handle Bar Clamp Charger Power Port Outlet Socket Set 12V - 24V 2.1A Support Mobile Vehicle ATV Boat Charger Waterproof cigarette lighter and USB port integration Input Voltage: 12V-24V. USB output voltage: 5V. USB output current: 2.1A With fuse built-in the red wire for safety 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