Tri-Color Navigation Light/Anchor Navigation Lamp- Incandescent - 2nm - Black Housing - 12VTri-Color lamps, and Tri-Color lamps with an integrated All Round White / Anchor Lamp for attachment to yacht masts.Non-magnetic and saltwater resistant. The lamp housing features a bayonet lock for easy bulb change. Specifications:Material Description: UV and impact resistant plastic housing and lensMinimum Visible Distance: 2 Nautical MileBulb: 12V / 25W BAY15d includedInstallation: Horizontal surface mountCable Entry: Through base plate with rubber grommetDegree of Protection: IP 55Approvals: IMO Col Reg 72, USCG, ABYC A-16, Maritime NZ