Gold plated contacts on pole lights and bases. Two mile visibility. For use on power boats under 20 meters (65.6'). 3/4'' diameter Anodized aluminum tube. Clear Fresnel globe. Waterproof cap and retainer. Chrome plated zinc alloy base with black plastic top. Base: 3-3/4"x1-5/8". Includes mounting base with waterproof cover and 12 Volt bulb. One per card.