Waterproof LED Trailer Boat Light kit, 6" Oval Stop Turn Tail light,2.57" 2 LED Side Clearance Marker Application: for heavy duty trucks, semi-trailers, cargo trailers, boat trailers work vehicles and any overland vehicle requiring quality DOT rated. All Lights are DOT approved with Long Lasting Diodes (100,000 hours rated). Lights feature Stop/Tail/Turn and Side Marker Functions. Shock and vibration proof watertight Sealed body. Circular lens output reduces mounting errors. Standard non-polarized connector. Low profile design reduces damage.