Perko Red Navigation Side LightThis Red Navigation Side Light from Perko is part of the 0170 Series, which is the updated version of the 0120 Series. This light is made of all white polymer with a red colored lens. They are 2-Mile (USCGnm) Certified. Specifications: 12 Volt; Screw size: #10; Projection Overall: 2-1/2"; Height Overall: 2-5/8"; Width: 4-1/8"; Visibility Arc: 112-1/2 degrees; Click here for Perko Navigation Side Light Installation Instructions.