DOT compliant 2 diodes. PC Rated – functions as side marker or clearance light and may be used as a combination clearance and side marker when properly mounted. Recommended for marine trailer use. LED replacement for 150 series incandescent light. Polycarbonate lens and base are welded together to form a single rugged unit Grommet / Surface Mount includes light, mounting bracket, lead wire and screws Mounts on 2″ centers. 2.48″ W x 1.2″H x .84″ D.