QC 3.0 Dual USB Charger Rocker Switch Socket, 12V-24V Waterproof USB Port with Blue LED Voltmeter, Fast Charging Fit for Marine Boat Truck RV Toggle Switch Panel

["Compatibility: Waterproof USB port is perfectly compatible with boats, trucks, campers, all-terrain vehicles, off-road all-terrain vehicles, trailers, buses, and other vehicles equipped with toggle switch panels for installation","Advantages: Fast charging USB socket is equipped with dual USB 3.0 interfaces and adopts fast charging technology, which can provide high-speed charging simultaneously for two devices","Design: USB toggle switch features a joystick switch design. It is equipped with a blue LED voltage meter that can display the 12V/24V battery voltage in real time and control the power on/off through the toggle switch","Waterproof: USB rocker switch is made of high-quality ABS and flame-retardant materials, equipped with a dust cover. It is waterproof, durable and suitable for long-term outdoor and marine use","Easy to Install: USB voltmeter adopts a plug-and-play design, and only requires simple wiring. It is equipped with overcurrent, overvoltage, short circuit and overheat protection functions to ensure safe charging and protect your vehicle and equipment"]