Upgraded 4 Port 12V USB Outlet, 78W Dual PD & QC Aluminum Alloy USB Ports with LED Voltmeter Waterproof for Cars, Cigarette Lighter Replacement 12V Socket for Boats RV Trucks and Motorcycles

【Fast and Efficient Charging】Experience the power of our upgraded 12V USB outlet with four ports—allowing you to charge four devices simultaneously and up to 78W output.（ 2 PD30W and 2 QC18W）. 【Durable and Premium material】Crafted from advanced aluminum alloy, our 12 volt Usb power outlet is not only strong and sturdy but also features anti-scratch technology, ensuring it maintains a sleek appearance even in rugged environments. Metal USB sockets provide superior heat dissipation vs. plastic competitors — safer at high temperatures.Say goodbye to flimsy plastic sockets!. 【Digital LED display】Keep an eye on your vehicle's health with the built-in blue LED voltmeter display. It automatically monitors your car's battery and electrical system, giving you real-time voltage readings to ensure safety and reliability during your travels.. 【Universal Compatibility】Designed for versatility, our car 12v Outlet USB charger is compatible with a range of vehicles including USB Socket 12v cars, boats, motorcycles, and RVs. Charge all your essential devices such as smartphones, tablets, and gaming controllers with ease!. 【Easy Installation】Enjoy hassle-free installation with our 12V USB charger, which comes with a 100cm fused cord, spare fuses. Whether you want to mount usb port in your car or boat, setting it up is a breeze—no professional help required!Simply connect the red wire to the positive terminal and the black wire to the negative terminal—red wire to the silver plug (+), black wire to the golden plug (–). if the connection is reversed, it will not be energized.