4 in 1 Charger Socket Panel - This 12v socket panel designed with 12v rv usb outlet + LED digital display voltmeter+ 12v cigarette lighter outlet + LED rocker toggle switch. Convenient for install and operate. Also detachable to replace other charger sockets or anything else that fits.
Waterproof Dual USB Charger Socket - This 12v USB car socket is built-in dual USB charging ports, two ports output: 5V/2.1A&2.1A (total 4.2A), will auto detect your devices and simultaneously charging 2 devices at optimal speed!
Real Time LED Voltmeter - With large digital voltmeter display that shows 0-30V voltage, you can monitor the condition of the battery on your car or boat that if the voltage is under normal status.
LED On Off Rocker Switch - Designed with rocker style, easy to use. Long lifespan up to 10000 cycles. Additional cigarette lighter socket is portable for other appliances in your vehicle.
Overcharge Protection - Over-heated, over-current, over-charging protection; This dual usb charger power socket also smart to identify the most appropriate current for your device.