Compact size and shape to fit where space is limited. Lens sonically sealed to base providing a "Bell-Jar", making this lamp fully submersible with easily replaceable bulbs. Meets all applicable DOT-108 lighting requirements for trailers 80" wide or wider when properly mounted. Pre-wired with molded plugs for easy installation. 6" x 3-1/2" x 2-1/4". Description 8-Function, Left/Roadside