Solid state construction, no bulbs to break or burn out 100,000 hour rated life Fully sealed, submersible construction Potted circuitry(coated and sealed) protects against moisture, corrosion, and vibration Lower amp draw than incandescent lights Designed to directly replace 456-series incandescent lights Integral, dedicated side marker diode Exceeds all DOT rear lighting and reflex requirements for trailers 80 wide and over 7-15/16 width x 2-7/8 height x 2-7/8 depth