The Truck-Lite 5.38" Round 1-Incandescent Stop / Turn / Tail Signal Light is a top-of-the-line lighting solution for your truck or trailer. With its advanced Red Bulb Technology, this light features a powerful LED bulb that provides bright and reliable illumination for your vehicle's stop / turn / tail signal light. Designed for heavy duty use, this light is built to last. Its unique shock mount design helps to extend the life of the bulb, ensuring that it will continue to provide reliable performance. And with its flush mount grommets, this light is easy to install in a 4-1/2" hole, making it a great choice for both new installations and retrofitting existing vehicles. FleetPride is your First Click in Heavy Duty®.