This listing includes two-Truck-Lite 15200Y Model 15 rectangular yellow units. The units are untested and come with open cases. The brand of the units is Truck-Lite, and they are classified as units in the business and industrial category, specifically in the Other Business Industrial category. The unit quantity is two. They are still taped on the back where you hook the wires up but unsure if they still work do to how they were stored but they have not been used