Dual USB Charger with button Switch , QC3.0 fast charging standard to charge the device at the speedCan charge two devices at high speed at the same timeSplashproof DustproofWith LED digital voltmeter, USB protective cover and power switchInput Voltage: DC 12V-24VOutput Voltage: DC 6V-3A; 9V-2A; 12V-1.5AMax Output: 36W(18W each)Wide Application: , motorcycles, ATVs, SUVs, UTVs, Boats, etcMulti-purposes: supply power for cellphone, , GPS and other USB-devicesKindly Reminder:1. The + is to positive, and - to negative.2. For vehicles, its recommanded to power from fuse box, while for the motorcycle, better connect to the wires of the key switch.3. The led light will show up after the item is connected to the battery.Note:1. When not in use, cover the USB protective cover to prevent the ingress of dust and water.2. Since the series does not support fast charging, charging the is the normal speed.3. For mobile phones that support fast charging, you must use the charging cable or the fast charging cable to achieve fast charging.color:Black + red voltageMaterial:plasticPackage Contents:1 x QC3.0 Dual Ports USB Charger With button Switch2 x Blue TerminalOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.