4-in-1 12V switch panel, dual 4.2A USB charging socket with waterproof ON/OFF rocker switch, LED digital voltmeter socket and cigarette lighter socket

4-in-1 Multifunctional Panel: Equipped with a 12V USB socket, LED voltmeter, 12V cigarette lighter socket, and LED rocker switch. Easily install or replace the sockets as needed.
Dual USB Charger: Two built-in waterproof USB ports (5V/2.1A each, 4.2A total) automatically detect and charge two devices simultaneously at optimal speed.
Real-Time LED Voltmeter: A large digital display shows the 5-48V voltage, allowing you to monitor your vehicle's battery status in real time.
LED Rocker Switch: Easy-to-use rocker switch. Long lifespan of up to 10,000 cycles, plus an additional ignition socket for added convenience. Safe application: Built-in smart protection ensures safe and optimal charging for your devices. Suitable for cars, boats, RVs, trucks, etc., supporting various vehicle devices.