Biltwell TL-MDC-AL-BK Black Model C LED Taillight (for Harley-Davidson and Custom Applications) All feature CNC lathe-turned 6061 T-6 aluminum light housings in choice of either polished or black finishes Extra thick injection-molded polycarbonate plastic lenses in all Custom 15-element LED board with two phases (brake light and running light) and three wires (ground, brake and running lights) All include two 1/4"-20 button head Allen bolts for mounting on Biltwell Model B brackets, custom fender bracket or Model-A style taillight/license plate brackets When illuminated, they are easily visible at approximately 300 feet in pitch darkness