Left Hand Tail Light with License Light Under 80 inch - Designed for a wide range of utility trailer applications, these units are the every day workhorse in the industry. This is a basic taillight for use on trailers under 80 inches wide, (if trailer is 80 inches or wider it requires clearance lights and ID bars). This light includes an integrated license illuminator and 2 - 1/4 inch diameter mounting studs on 2 inch centers, wires simply plug in to the back of the light housing. It meets DOT standards for License, Stop, Turn, Tail, and Side Marker Lamps, Rear and Side Reflector Functions. Use bulb #1157 for tail light replacement and bulb #57 for license plate replacement. Red lens in color. Dimensions: 4-1/2 inch L x 4-1/2 inch W x 2-9/16 inch D. 1 per package. * Note: Not a submerisble light.