Replacement Bulbs

About Replacement Bulbs

Replacement Bulbs for Boats

Marine light bulbs are fairly unique from top to bottom. Applications are nearly endless as well with replacement lightbulbs for boats including everything from navigation to overhead fixtures. Defender Marine offers a wide variety of marine light bulbs to fit every need aboard.

What kind of bulb is this??

Identifying the replacement marine bulb is the first step in choosing a new one. The base style is the place to start for choosing the correct replacement light bulb, matching the bi-pin, single contact, or even screw base of the old bulb will eliminate a lot of guesswork. On the other end LED, Halogen, and incandescent-style marine bulbs are an option of choice.

Adaptors and conversion kits offer more options

With all those styles of marine light bulb bases sometimes it may be easier to choose a marine bulb and then a conversion kit. Adaptors to the two-prong style base and even conversion kits to LED-style bulbs are offered for boaters looking to replace marine light bulbs.

Marine light bulbs for every application

You name it - you got it! There are marine replacement light bulbs for exterior applications like navigational lights, anchor lights, trailer lights, and spotlights. Inside the cabin, marine light bulbs are offered for chart lights, overhead lights, interior halogen lights, and screw-in lamp lights designed for the marine environment.

Replacement Bulbs

Forespar Festoon LED Replacement Bulb (Top) for ML-2 Light - 132325

Forespar LED Replacement Bulb (Bottom) for ML-1/ML-2 Light Deck Light - 132335

Perko Festoon Replacement Bulbs

Perko Double Contact Bayonet Socket - 0052DP

Perko Sealed Beam Unit - 2 3/4" - 043200112V

Perko Wedge Base Bulb

Perko Double Contact Bayonet Socket

Wesbar Trailer Light Replacement 2057 Bulb - 30-84-057

Perko Combination Masthead/Anchor Lights Converter Module - 12V - 1680DP012V

Perko Sealed Beam Unit - 7" - 043300312V

Perko Double Contact Bayonet Bulb

Perko Double Contact Bayonet Indexing Base Bulb

Perko Medium Prefocus Bulb

About Replacement Bulbs

Replacement Bulbs for Boats

What kind of bulb is this??

Adaptors and conversion kits offer more options

Marine light bulbs for every application

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