Fast ChargingThe dual USB charging socket is up to 4 times faster than traditional chargers and has 2 fast charging ports with 18 W / 3 A QC3.0. Compatible with all popular USB devices, such as Samsung Galaxy S10 / S9 / LG G6 / Huawei Mate P20 / P10, etc. Thanks to the built-in Smart IC technology, 2 USB charging ports allow charging 2 devices simultaneously at optimal speed. The USB car charger is made of aluminum alloy which dissipates heat better. It has the advantage of being non-flammable and resistant to wear. Superior performance. Total power max. of 120W (12V) / 250W (24V). Enough for daily use, perfect for compatible devices like dash cam, GPS, vacuum cleaner, air purifier, etc. LED Display VoltmeterMonitors the status of your sport utility vehicle battery, off-road vehicle, recreational vehicle, vehicle, boat, marine, motorcycle, etc. With LED light, perfect for night use. Independent on/off switchThe USB charger is equipped with a toggle switch to save power. energy, protect devices and extend the life of devices. It saves energy and does not consume electricity when turned off. High safety standardsMade of ABS and aluminum, resistant to high temperatures and low, with flame retardant properties. The cable has a built-in 10A fuse for protection against overload, overheating, overvoltage, undervoltage and short circuit. CE, FCC, RoHS certifications.