All Round White Light/Anchor Navigation Lamp- Incandescent - 2nm - Black Housing - 12VBSH approved, saltwater resistant and non-magnetic, they feature a bayonet lock on the lamp housing for easy bulb change.Designed for permanent installation or hoisting up masts.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