General description This 4 in 1 Marine Switch Panel is a versatile 12V socket panel that combines a USB charger, LED voltmeter, cigarette lighter socket, and rocker switch for easy installation and use. It is designed for both cars and boats, providing a convenient power solution for various devices. Technical specifications Input Voltage: 12V USB Output: Dual ports, 5V/2.1A each (total 4.2A) LED Voltmeter Display: Monitors voltage from 5V to 48V Service Life: Up to 10,000 cycles Compatibility and accessories Includes: 1 x 4 in 1 Charger Socket Panel 4 x Stainless Steel Screws 9 x Blue Terminals Usage This panel allows you to charge two devices simultaneously while monitoring the battery status of your vehicle. The extra cigarette lighter socket provides additional convenience for powering other devices. Other information