Fast USB Car Charger with Dual QC3.0 USB Ports, 12V/24V 36W Waterproof with LED Digital Voltmeter for Motorcycle, Caravan, Truck, Boat and More

[Dual QC3.0 USB Ports] Two QC3.0 fast charging ports, 18W/3A, 4x faster than conventional chargers. Backward compatible with Quick Charge 2.0 & 1.0. Suitable for all popular USB devices. Note: The car charger consumes a maximum of 30mA when the vehicle is off. [All Metal Shell] Made of aluminum alloy with superior heat dissipation, offering the advantages of being flame-retardant, wear-resistant, and highly stable. The upgraded metal car charger will not overheat at high temperatures, making it safer than plastic. [LED Digital Display] Features an LED display that shows the car battery voltage status in real time. Very practical for cars, boats, bicycles, SUVs, ATVs, camper vans, caravans, motorcycles, etc. [All-Round Protection] The QC3.0 dual USB charger socket meets the strictest safety and quality standards. It provides protection against overload, overvoltage, overcurrent, overheating, and short circuits. [Easy Installation] The USB socket is very easy to install: "+" is plugged into the positive terminal and "-" into the negative terminal. It can also be connected to an on/off switch to save energy.