Description: The usb charger socket has two 18W / 3A QC3.0 fast charging ports, provides 4x faster charging speed to compatible devices. Backward for QC 2.0 &1.0 and deliver the fastest possible charge to all non-quick charge devices. Multi-purposes: supply power for cellphone, tablet PC, GPS and other USB-devices An integrated usb charger socket with a LED voltage display that can show the voltage status of car battery in for time. Very useful for car, boat, bike, SUV, ATV, RV car, campers and motorcycles, etc. With IP66 waterproof grade, have good waterproof and dust prevention effect,with on off switch,easy to use and save energy. Wide Application: for cars, motorcycles, ATVs, SUVs, UTVs, Boats, Marine,bus,and more. Specifications: Product material: Aluminum Product Color: Black,Blue,Red,Gold LED Color: Red,Green,Blue input Voltage: for DC 12V - 24V USB 1 Output : for DC 5V/3A;9V/2A;12V/1.5A USB 2 Output : for DC 5V/3A;9V/2A;12V/1.5A Size: 50x36.8x28.6mm Note: 1.Transition: 1cm=10mm=0.39inch 2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 X for QC 3.0 Car Dual USB Charger with LED Voltmeter on off switch