The M42215 is a 3” X 5” rectangular back-up lamp / turn signal. The center 12 LED's illuminate in the back-up, or reverse, function. The 30 red LED's illuminate the edge in a glow effect and function as the red turn signal. The edge of the lamp is white when in the off position. It fits industry-standard rectangular grommets like M49700 and has an integrated PL-3 connector. This light features a polycarbonate lens and housing and is backed by Maxxima for 5 years.