Leading Edge Lighting CL-11223-R 10 3/4" Red LED Clearance Marker Bullet Grommet Lights High impact polycarbonate body filled with our unbelievably tough urethane, makes this light nearly hammer proof Ultra-efficient lens design leads the world in performance, miniature size and low profile reduces damage Reliable performance over 100,000 hours, waterproof, sealed body that is immune to shock and vibration Easily mounts into standard 3/4" hole, PC output exceeds FMVSS 108 specifications PC rated side marker clearance lamp for heavy duty trucks, semi-trailers, cargo trailers and boat trailers work vehicles