quick charge 3.0 cigarette lighter outlet splitter, 12v usb charger waterproof power socket adapter diy kit with blue led dual usb ports for rocker switch panel on car boat marine rv, etc qidoe <b>qidoe qc 3.0 dual usb charger socket waterproof marine power outlet with voltmeter digital display led switch for 12v/24v car rv boat utv, atv, motorcycle mobile etc</b><br> <br> <b> smart ic technology</b><br> outputs stable current without fluctuation. protect your devices from overload.<br> <br> <b>easy installation</b><br> this usb car outlet fits most vehicles dash panel and rocker switch panel , just connect“+” to battery positive pole, “-” to negative pole.<br> <br> <b>safe driving</b><br> with built-in led digital display voltage monitor, shows the accurate voltage status of device in real-time, prevent your devices from starting hard, off and on intermittently and the headlights not enough bright cause by too low battery voltage, or prevent your devices from engine instability or horns stopping working cause.<br> <br> <b> broad compalitity </b><br> this usb charger socket fits for 12-24v car, boat, marine, motorcycle, atv, rv etc. suitable for charging mobile phone, gps, digital camera, pda and other usb accessories.<br> <br> <b>specification</b><br> rating voltage: 12-24v<br> usb output: dc 3.5-6.5v/3a, 6.5-9v/2a, 9-12v/1.5a <br> material: copper + abs plastic<br> operating temperature: -40 to 70°c <br> multi-purposes: supply power for cellphone, tablet, gps and other usb-devices<br> <br> <b>kindly reminder</b><br> 1. power connecting wires, usb cable and devices should support qc 3.0 fast charge.<br> 2. for vehicles, it's recommended to get power from fuse box, while for the motorcycle, better connect to the wires of the key switch.<br> 3. the voltage meter reading led will show up after the item is connected to the battery.<br> <br> <b>package include</b><br> 1* qc 3.0 usb car charger outlet<br> 1* led voltmeter<br> 1* led switch <br> 4* fixing screw<br> 6* blue terminal