Perko Model 904 Bi-Color Light For use on power driven vessels under 12 meters (39.4 feet) 20 Points, 225 Red and green lenses, 1 mile visibility. Brass - polished chromium plated, black plastic base. Certified and supplied with 12 VDC No. 71 bulb. Complete with stainless steel mounting screws. Dimensions: 4-1/4" x 2-1/8" x 7/8" high.