USCG certified for use on power driven vessels under 20 meters (65.6')..2 Mile Visibility.Black plastic top with built-in deck illuminating utility light & gold plated contacts.3/4" Diameter aluminum tube.Requires 3-pin base.USCG certified for use on power driven vessels under 20 meters (65.6')..2 Mile Visibility.Black plastic top with built-in deck illuminating utility light & gold plated contacts.3/4" Diameter aluminum tube.Requires 3-pin base.. Have alternate - BI-COLOR BOW LITE W/