[Multi-function Rocker Switch] Includes 5 blue LED rocker switches, 12V cigarette lighter sockets, dual USB charger (5V 2.1A) and 12V/24V LED digital voltmeter. Great for circuit control, charging needs and voltage monitoring [Safety and Waterproof Protection] The switch button has been rigorously tested. High quality aluminum plate, scratch and corrosion resistant, with rubber sealed cap for all sockets dust and debris proof. You can even use it at -25(min) or 80(max). IP65 waterproof, RoHS and CE certified, completely environmentally friendly [Durable material] The panel is made of high quality aluminum plate, which makes it scratch and corrosion resistant. You can even use it at -25~85. Built-in blue LED light, allowing you to see the switch clearly in dark environment [Easy Installation] The panel is pre-wired, just connect the red line to the "+" of the power supply and the black line to the "-" of the power supply. 4 stainless steel screws and labels included, can be easily installed in 12V systems, widely used for cars, trucks, RVs, ATVs, boats, etc.