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

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

Marinco Replacement Halogen Spotlight Bulb - 12V - 202319

Scandvik Dimmable G4 COB LED Replacement Bulb - 41072P

Scandvik Mini-Tower LED Replacement Bulb - 41034P

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

Dr. LED Edison 1X LED Replacement Bulb - 8001795

Dr. LED Green Polar Star 40 Navigation LED Replacement Bulb - 8001771

Dr. LED H2492 Star Navigation LED Replacement Bulb - 8000067

Dr. LED Red/White Dome Light LED 2-Bulb Conversion Kit - 9000333

Dr. LED Tower LED Replacement Bulb - Double-Contact Bayonet Non-Indexed BA15D - 9000128

Dr. LED Waterproof Mini G4 Star LED Replacement Bulb - 9000432

Dr. LED White Polar Star 40 Navigation LED Replacement Bulb - 8001757

Hella Marine BAY15D Bayonet Base Replacement Navigation Bulb - 003488121

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

ACR Replacement Halogen Searchlight Bulb - 6001

Scandvik Wedge Base Mini-Tower Bulb - 41095P

Scandvik G4 Wafer Back-Pin LED Bulb

Perko Double Contact Bayonet Socket - 0052DP

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

Dr. LED White Festoon Star Navigation LED Replacement Bulb - 36 - 44 mm (1 7/16" - 1 3/4") - 9000241

Dr. LED White Festoon Star Navigation LED Replacement Bulb - 28 - 31 mm (1 1/8" - 1 1/4") - 9000173

Imtra "X-Beam" G4 LED Replacement Bulb

Imtra Tower Navigation Bayonet LED Replacement Bulb

Hella Marine BAY15D Bayonet Base Replacement Navigation Bulb - 003488301

Perko Festoon Replacement Bulbs

Ancor Festoon Light Bulbs (2-Pack) - 529102

Dr. LED Bi-Color Polar Star 25 Festoon Navigation LED Replacement Bulb - 8001122

ACR RCL-50 Searchlight Replacement Bulb - 55W - 6002

ACR RCL-100 Searchlight Replacement Bulb - 55W - 6003

Dr. LED MR16 1X LED Replacement Bulb - 12V - 8001825-08

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

ACR RCL-600/600A Lamp - 6007

Marinco Guest Spotlight Bulb Replacement Kit with Bezel - 729494

Marinco Replacement Halogen Spotlight Bulb - 24V - 202320

SCAD Technologies Ba15d Bayonet Bulb Socket Adapter - 10014

Sea-Dog Replacement Incandescent Spreader Light Bulb - 405411

Dr. LED Dome Light LED Conversion Kit - 9000159

Dr. LED Edison SideKick 3X LED Replacement Bulb - 8001818

Dr. LED Elongated Magnum LED Replacement Bulb - 9000449

Dr. LED G4 LED Bulb - 9000104

Dr. LED G4 LED Disk - 9000081

Dr. LED Hex GE90 Star Navigation LED Replacement Bulb - 9000425

Dr. LED Magnum MKII LED Replacement Bulb - Single Contact Non-Indexed BA15S - 8001245

Dr. LED Magnum MR16 1X LED Replacement Bulb - 8001825

Dr. LED P338 Wedge Star Navigation LED Replacement Bulb - 9000371

Dr. LED Polar Star 20 Navigation LED Replacement Bulb - 8001849

Dr. LED Red G4 SMD LED Disk - 9000098

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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