Autosmart 2PCS Red 17" 11 LED Trailer Light Bar Sealed Stop Turn Tail Park Brake Light Truck Trailer Clearance Marker ID Bar Each light has 11 Super Diodes for a Bright Performance; Polycarbonate lens is sonic welded to the housing. For use on various of TRAILERS AND BOATS as: boat trailer, cargo trailer, horse trailer, car trailer, travel trailer, flat trailer, waverunner trailer etc. 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. PACKAGE INCLUDE: 2PCS Tail LED Light Bar