Sea-Dog LED Port/ Starboard Navigation Light Black. This boat light by Sea-Dog is approved for 1 NM and must be mounted properly to provide the correct visual alignment and allow unimpeded sight lines. The Sea-Dog LED Navigation Light is approved for 1 NM and must be mounted properly to provide the correct visual alignment and allow unimpeded sight lines. For a great boat light that will not let you down when you need it most choose the Sea-Dog Black LED Navigation Light. Specifications for Sea-Dog LED Port/ Starboard Navigation Light: Manufacturer: Sea-Dog Light Type: Navigation Color: Black Bulb Type: LED Package Contents: Sea-Dog Black LED Navigation Lights Sea-Dog 400073-1: LED Port/ Starboard Navigation Light Black