USMEI Dual USB Charger Socket Waterproof Power Outlet 4.8A with 12V/24V Voltmeter LED Digital Display for Car Boat Marine Motorcycle ATV RV Campers Tractors

Input: DC 12V / 24VOutput Voltage: DC 5VOutput Current: 4.8AMAX Power: 24WPls pay attention to the positive and negative terminals when connecting the USB charging socket to the power supply.If you will not start your vehicle for more than 6 months and the USB charger socket is directly connected to the battery, we recommend you to add a switch (ASIN: B07MYR6WD3) during the installation. If the usb socket charger is connected to the autos power control center (power on-off follow the vehicles start-stop) then no switch is needed.The maximum charging current can be reached only when the battery voltage of the car is stable and normal, the device charged is short of power and the suitable cable is used.Please cover the usb power socket with the cap when not in use to avoid dust and water get inside.1 x USB Charger Socket2 x Blue Insulated Connector2 x Chrome Plated Copper Terminal1 x 39.37inch Copper Cores Red-Black Wire