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

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

Sea-Dog Festoon Light Bulb - 1 3/16" - 441071-1

Sea-Dog Double Contact Bayonet Base Light Bulb - 1-15/16" - 441157-1

Sea-Dog Wedge Base Light Bulb - 441906-1

Ancor Festoon Light Bulbs - 12V - 15W (2-Pack) - 522112

Ancor Festoon Light Bulbs (2-Pack) - 529102

Hella Marine Replacement Halogen Flood Light Bulb - H83135051

Seachoice Replacement Bulb (2-Pack) - 12W - 09951

Ancor Festoon Light Bulbs - 12V - 6W (2-Pack) - 529095

Seachoice Replacement Bulb - 10W - 09991

Seachoice Replacement Red Light Bulb - 12V

Seachoice Replacement Halogen Bulb

Sea-Dog LED Festoon - 1 1/4" - 442232-1

Dr. LED Single-Sided Wedge Base LED Replacement Bulb - 8001559

Ancor Mini Halogen Replacement Bulb - 12V - 10W

Ancor Medium Screw Base Light Bulbs

Scandvik Wafer Back-Pin G4 LED Replacement Bulb 6SMD - 41001

Dr. LED Elongated Magnum LED Replacement Bulb - 9000449

Scandvik G4 Base Adapters

Perko Double Contact Bayonet Socket

Scandvik Festoon Wafer Bulb

Marinco Replacement Halogen Spotlight Bulb - 12V - 202319

Sea-Dog Halogen Light Bulb with Reflector MR-16 - 441816-1

Seachoice Replacement Festoon Bulb - 09891

Marinco Replacement Halogen Spotlight Bulb - 24V - 202320

Seachoice Bayonet Socket

Seachoice Replacement LED Bulb - 25/8W - 09981

Scandvik Replacement Wafer Back-Pin G4 LED Bulb - 41000P

Scandvik G4 Wafer Side-Pin Bulb

Scandvik G4 Wafer Back-Pin LED Bulb

Perko Wedge Base Bulb

Imtra "Mini" G4 LED Replacement Bulb - ILBPG4-09C

Seachoice Replacement Bulb - 3W - 09921

Scandvik Blue LED G4 Halogen Look-Alike Bulb - 41038P

Dr. LED Red G4 SMD LED Disk - 9000098

Imtra Blue "Mini" G4 LED Replacement Bulb - ILSPG4-09B

Scandvik Wedge Base Mini-Tower Bulb - 41095P

Perko Festoon Replacement Bulbs

Scandvik Warm White A15 Bulb - 41036P

Imtra "Mini Tower" G4 LED Replacement Bulb - ILTWG4-15W

Scandvik Wedge Base Tower Bulb - 41092P

Sea-Dog All Around LED Festoon - 1 1/4" - 442431-1

Scandvik Mini-Bayonet Mini-Tower Parallel Pins - Single Contact Bulb - 41075P

Scandvik Bayonet Base Wafer Offset Pins - Dual Contacts Bulb - 41088P

Scandvik Bayonet Base Wafer Parallel Pins - Dual Contacts Bulb

Scandvik MR16 LED Light Bulb

Scandvik Bayonet Tower Parallel Pins - Dual Contacts Bulb

Scandvik Bayonet Tower Offset Pins - Dual Contacts 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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