“LED” represent the cutting edge of lighting technology, LED lights operate ona totally different concept than traditional incandescent or bulb style lights.Instead of using a brittle metal filament that is susceptible to road shock andvibration. LEDs are solid-state devices utilizing an electronic chip that isencapsulated in an epoxy substrate. This design provides increased durabilityand a protective seal from road elements like dirt moisture and other corrosiveagents. 4″ X 3/4″ Clearance Marker Light Thin-Line Design Fits Rails Standard 3″ Mounting Holes Polycarbonate Lens & Housing Sealed Moisture Proof Electronics LED’s: 7 Width: 4″ Height: 0.75″ Depth: 1.4″ DOT/SAE: J592e Voltage: 12.8 VDC Amp Draw: 40ma Legal Heading: P2 2 Hole Surface Mounted Uses a Bullet and Ring Type Connector Available In: Amber and Red