Uriah Products UL440001 is a red stop/tail/turn/signal light for trailers under 80" long. This 4-1/2" square light features an incandescent bulb and does not include license illumination, making it perfect for the right side of your trailer. This light is stud-mounted, with the bolts 2" apart. It meets all applicable SAE standards and meets or exceeds all DOT standards.