Meets ABYC Standard A-16. 2-mile visibility for sail or powerboats under 39'. 
Anti-glare globe. 12V DC - 15 CP lamp included. Base is die-cast zamak with Perma-Plate® chrome finish and is pre-drilled and countersunk to accommodate #10 screws. Poles are 3/4" anodized aluminum. Base fits Attwood 7100 and 5100 series.