[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[Wide Application] CE and RoHS certified, these blue LED light rocker switches are widely applicable for boats, cars, RVs, vehicles, trucks, yachts, pleasure boats, off-road vehicles, caravans, etc