Description:1 (One) LED ID Tri-Bar used for 7° Cross Member. Two LEDs per cluster (6 LEDs total). Specially designed for use as DOT Required ID Lighting on Over 80″ Marine trailers employing bent frame cross members. Utilizing marine-grade tinned wire hot, ground leads, and silicon epoxy-sealed diode cavities, this lamp has been time-tested to withstand even the harshest saltwater marine environment. It has continued burning brightly for years and bent to match the typical curvature of cross members to eliminate the likelihood of damage by the overhang and to increase the visibility when the trailer is loaded with a low-hanging boat prop.