Wired LED Light Bar 36-inch super: 36-inch towing truck light bar made with two wiring harnesses inside, so you can use it on a heavy-duty wrecker with a 7-pin cable or on a light-duty vehicle with a 4-pin cable. All lights are LED and this light bar is made in USA. Built to out-perform and outlast the competition, these tow truck light bars are made with LED lights and a Blue case that is nearly indestructible. Note: These tow truck light bars use 4-pin or 7-pin extension cords (not included).