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

Ancor Mini Halogen Replacement Bulb - 12V - 10W

Ancor Replacement Bulbs - 24V - 50W - (2-Pack) - 532050

Ancor Replacement Bulbs #912 - 12V - 12.8W (2-Pack) - 520912

Ancor Replacement Bulbs #194 - 12V - 3.8W (2-Pack) - 520194

Ancor Replacement Fluorescent Tubes - 12V - 8W (2-Pack) - 529405

Ancor Single Contact Bayonet Replacement Bulbs -12V - 26.9W (2-Pack) - 521156

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

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

Ancor Festoon Light Bulbs - 24V - 10W (2-Pack) - 522129

Ancor H2 Halogen Replacement Bulb - 12V - 55W - 529168

Ancor Double Contact Index Replacement Bulb - 24V - 25W - 529341

Ancor Double Contact Index Replacement Bulbs - 12V - 10W (2-Pack) - 521158

Ancor Bayonet Replacement Bulb - 12V - 20W - 529337

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

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

Sea-Dog Wedge Base Light Bulb - 441906-1

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

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

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

Perko Medium Prefocus Bulb

Perko Double Contact Bayonet Bulb

Perko Double Contact Bayonet Indexing Base Bulb

Perko Wedge Base Bulb

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

Perko Sealed Beam Unit - 7" - 043300312V

Whitecap Flush Mount Sidelight Replacement LED

Marinco Spotlight Bulb Replacement Kit - 22014-P

Seachoice Bayonet Socket

Seachoice Replacement Halogen Bulb

Seachoice Replacement Red Light Bulb - 12V

Seachoice Replacement Bulb - 3W - 09921

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

Seachoice Replacement LED Bulb - 25/8W - 09981

Seachoice Replacement Bulb - 10W - 09991

Seachoice Replacement Festoon Bulb - 09891

Seachoice Replacement Bulb (2-Pack) - 7.5W - 09901

Seachoice LED Replacement Bulb - 12V - 02501

Seachoice LED Replacement Bulb for Portable Battery Operated Navigation Light - 02511

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

Perko Double Contact Bayonet Socket - 0052DP

Perko Double Contact Bayonet Socket

Hella Marine SV8.5-8 Festoon Replacement Bulb - 002091361

Hella Marine H3 Floodlight Replacement Bulb - 178555061

Ancor Festoon Light Bulbs (2-Pack) - 529102

Scandvik G4 Base Adapters

Scandvik Nav. Festoon Bulb - 360 deg.

Scandvik Nav. Barrel Bulb - 360 deg.

Scandvik Bayonet Tower Parallel 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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