Perko Green Navigation Side LightThis Green 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 green colored lens. They are 2-Mile (USCG nm) Certified. Specifications: 12 Volt; Screw size: #10; Projection Overall: 2-1/2"; Height Overall: 2-5/8"; Width: 4-1/8"; Visibility Arc: 225 degrees; Click here for Perko Navigation Side Light Installation Instructions.