[DOT Compliant] Partsam 1 x Red Super bright LED Surface Mount 15 light bar, completely sealed and waterproof. Each light has 11 Super Diodes for a Bright Performance; Polycarbonate lens is sonic welded to the housing. For use on heavy duty trucks Peterbilt Freightliner Kenworth Mack Western Star, semi trailers, cargo trailers, boat trailers, work vehicles and a wide or narrow overland vehicle requiring quality DOT rated lighting. Functions as marker, clearance light, side marker, identification light, stop light, turn light, tail light and brake light. EASY TO INSTALL White Wire Ground; Red Wire high brightness; Black Wire low brightness.