??DUAL QC3.0 USB PORTS??Designed with Smart IC and fast charging technology, Cigarette Lighter Socket comes with two 18W / 3A QC3.0 USB port, up to 4x faster than traditional chargers. Universal for all 12V-24V cars, bus, RV, ATV, Truck, trailer, boats. marine and more.??Voltage Display & Safety Driving??digital voltmeter display that shows 6-24V voltage. The real time LED voltmeter can remind you whether the voltage is at a normal level to ensure safety driving. Total output up to 120W(12V) / 250W(24V), meet all your charging demand??Independent Toggle Switch??This charger panel designed with independent ON/OFF switch, which saves more electricity and expands the product??s lifespan. You also no need to worry about drain any power.??High Quality Material?? Made of ABS and Aluminum material, this car charger has the features of better heat emission, wear resistant and non-flammable. 10A built-in fuse provides intelligent protection, such as over-load, over-heat, over-voltage, under-voltage and