The T86 is able to meet all requirements for stop, turn, tail, side marker, clearance marker, rear reflector, side reflector and license plate light in a revolutionary, cost-effective design. With a sonic-welded case and potted electronics, this light will survive the harshest environment. Unlike the competition, this lamp is actually submersible! Although every manufacturer claims that their box light is waterproof, leakage is still the main complaint. We solved this problem by designing the light engine to be less than 0.6" thick. This allows us to guarantee a perfect, waterproof seal every time. And despite the T86's unique design, it still fits in the industry-standard spacing, and uses standard hardware. If you ever manage to break the lens and the light fills with water, rest assured that the potted circuitry guarantees it will still continue to work for years!