Waterproof DC 12V 24V Aluminum Panel for Marine Car Boat with 5 gang Blue Led Rocker Switch 4.2A USB and Power Charger Application scenarios: RV, car, yacht, ship, truck, etc. Color: Black; Panel material: water transfer printing aluminum plate; Switch: on / off; Switch LED: blue, red, black (optional); Optional: LED voltmeter (white, green, blue and red); Installation: pre wiring; Input voltage: 12-24V; USB interface: 2 USB (5V 2.1A / 5V 2.1a)