4 Hole Square Panel
- 4 in 1 Design - This multifunctional 12v switch panel designed with USB outlet 12v + LED digital display voltmeter+ 12v cigarette lighter outlet + LED rocker toggle switch. Convenient for install and operation. Also detachable to replace other charger sockets or anything else that fits.
- Waterproof Dual USB Charger Socket - This 12V USB socket is built-in dual USB charging ports, two ports output: 5V / 2.1A & 2.1A (total 4.2A), will auto-detect your devices and simultaneously charging 2 devices at optimal speed!
- Real-Time LED Voltmeter - This switch panel with a large digital voltmeter display that shows 9-24V voltage, you can monitor the condition of the battery on your car or boat that if the voltage is under normal status.
- LED On Off Rocker Switch - Designed with rocker style, easy to use. The additional cigarette lighter socket is portable for other appliances in your vehicle. (Blue led light goes off when the switch is off)
- The sockets require a 1-1/8 hole and this is the step bit that we use. https://amzn.to/36wxWNz