Four in One Panel 12V/24V 3.1A Dual USB Power Adapter with LED Voltmeter and Rocker Switch Suitable for Marine RV Trucks

Four in one multifunctional panel: equipped with 12V USB socket, LED voltmeter, 12V power socket, and LED rocker switch. Easy installation or replacement of sockets as neededDual USB charger: Built in dual USB ports (5V/2.1A and 5V/1A, totaling 3.1A) automatically detect and charge two devices simultaneously at the best speedReal time LED voltmeter: A large digital display screen displays 5-24V voltage, allowing you to monitor the vehicle's battery status in real-timeLED rocker switch: an easy-to-use rocker switch with a lifespan of up to 10000 cycles, coupled with an additional power adapter for greater convenienceSafe application: Ensure the safety and optimal charging of your device, suitable for cars, boats, RVs, trucks, etc., supporting various vehicle electrical appliances