All Round White LightAnchor Navigation Lamp- Incandescent - 2nm - White 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.SpecificationsMaterial 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 gromm