[ Dual QC3.0 USB Ports ] Two 18W / 3A QC3.0 fast charging ports and 4x faster than conventional chargers. Backwards compatible with Quick Charge 2.0 & 1.0. Suitable for all popular USB devices. Note: The car charger will consume 30mA current at most when the vehicle has been switched off. [ All Metal Material Body] Made of Aluminum alloy with better heat disation, which has advantage of non-flammable, wear resistant and good stability. Upgraded metal car charger will not be overheating at high temperatures, which is safer than plastic one. [ Digital LED Display ] With a LED voltage display that can show the voltage status of car battery in time. Very convenient for car, boat, bike, SUV, ATV, RV car, campers and motorcycles, etc. [All Round Protection] Dual QC3.0 USB charger socket is in line with the safety and quality regulations of the strictest. Provides protection against overload, overvoltage, overcurrent, overheat and short circuit. [Easy Installation]