This Peterson Mfg. Side Marker Light features a red lens and incandescent bulb. Specifications•Bulb Type: Incandescent•Mounting Type: Surface Mount•Shape: Rectangular•Diameter: Not Applicable•Length: 4-1/16 Inch•Width: 2 Inch•Lens Color: Red•Height: 1 Inch Two-Wire Electrical Connection Rectangular Clearance & Side Marker Light | Peterson Manufacturing Peterson Mfg. Side Marker Clearance Light, Red