Incandescent Stop/Turn/Tail, Universal Round, Stud-Mount w/ License Light, 3.75″X2.625″. For use on vehicles under 80″ wide unless used in pairs per side. Stud-mount, combination tail light that functions as stop, turn, tail, and license light. Features 3-3/4″ diameter wrap-over lens retained by two screws, black plastic housing, and two 10″ lead wires. Mounts with two 1/4″ studs on 2″ centers. Grounds through mounting hardware.  Less than 75 sq. cm of effective, projected luminous lens area. DOT regulatory compliance.