TEQStone Car Marine Switch Panel, Boat Rocker Switch Panel, 3 Gang/4 Gang/6 Gang with Voltmeter/5V 1A&2.1A USB Charger/Cigarette Lighter ALL-IN-ONE - Voltmeter, 2x USB Slot, Car Battery Life Indicator, LED Backlight 3 Gang Rocker Switch Panel With Rubber Seals. EASY TO INSTALL - Connect the switches to your car circuit, put the item into the switch hole, fix it with screws and then you can begin to use the pre-wired switch panel. DIY FRIENDLY - 3 Clean Rocker Switches can be designed to control anything at will. IP67 WATERPROOF - Rainproof after installation into vehicles. UNIVERSAL COMPATIBLE - Suitable for DC 12V Systems.[180 Days Warrenty]