Multifunctional switch panel: 5 x rocker switches with blue LEDs, cigarette lighter socket, 2.1A/5V dual USB charger and digital LED voltmeter included. 15A fuse: The built-in 15A fuse protects your devices against overheating, overcurrent, overvoltage, overload, undervoltage and short circuit. Easy installation: Only the red cable needs to be connected to the \"+\" terminal of the power supply and the black cable needs to be connected to the \"-\" terminal of the power supply. Operating temperature: -25 to 80 degrees Celsius. IP65 waterproof, RoHS and CE certified. Made of high-quality ABS, polycarbonate and polybutylene terephthalate materials and aluminum plates. Wide range of applications: Thlevel switch panels are suitable for most vehicles equipped with DC 12V-24V batteries, such as cars, ATVs, sand buggies, trucks, trailers, RVs, caravans, buses, ships, yachts, airplanes, etc.