1Function: The switch panel can be connected to harness for controlling equipments such as LED work lights, fog lights, width indicator, car refrigerator, vacuum cleaner. 2Unique Design: The rocker switch panel comes with USB and cigarette lighter sockets for charging, and voltage monitoring display, to ensure a convenient and safe charge. 3Material: Made of marine grade Abs plastic material, strong and durable, IP65 waterproof, scratch resistant, corrosion proof, easy installation, practical and powerful. 4Sticker: The package comes with an sticker with a variety of different patterns, which can be attached to the panel to meet the needs of different function indications. 5Wide Application: This combination 4 gang switch panel is widely used in 12V?24V vehicles, such as trucks, jeeps, trailers, RVs, caravans, buses, marine boats, yachts, etc.