This 2?inch round 7?diode dual?revolution red marker to auxiliary LED light is a compact universal lighting option. These round LED lights use dual?revolution technology so the same seven diodes can function as a red marker light and switch to an auxiliary color such as white, green, blue, or purple with the included extra male wire and standard 2?prong plug, making them versatile for trucks, trailers, or other vehicles with a standard 2?inch grommet mount. The clear polycarbonate lens and IP67 waterproof rating help protect the diodes and support performance in varied weather conditions, while DOT compliance means they meet basic auxiliary light standards. At about 1 inch deep and operating at 12?V, these lights are designed for simple installation and are backed by a warranty against defects in materials and workmanship from the date of purchase.