The Peterbilt Cab Purple Dual Revolution LED with Housing is a practical and versatile product that offers both amber marker function and purple auxiliary lighting. With 19 diodes and a clear lens, this LED light fits most Peterbilt models and is sold individually. Its compact design and durable construction make it a reliable choice for enhancing visibility and safety on the road. The product's dimensions and appearance can be viewed in the provided image. Watch the embedded video for a closer look at its features and benefits.