Multifunctional switch panel kit: 5V 2.1A dual USB charger with digital voltage display and cigarette lighter socket. Can be used for powering external devices in the car, but also for mobile phones, tablets, GPS, etc. High-quality material: Made of environmentally friendly ABS/PC/PBT material. High temperature resistance and working temperature: -25 - 80 C. IP65 waterproof: Car charger and cigarette lighter socket with rubber-sealed cap for all sockets. Overload, overcurrent, and short circuit protection. Easy installation: Red wire connects to the positive pole. Black wire connects to the negative pole. All wires with fuses are connected to the positive pole of the electrical appliance. Wide application: This switch panel is suitable for most DC 12V-24V cars, UTVs, ATVs, trucks, trailers, RVs, caravans, buses, and marine vessels. Yachts. Airplanes, etc.