Replacement Bulbs

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

    $44.99
    0
  2. Dr. LED 36-44 mm White Festoon Star Navigation LED Replacement Bulb - 9000241

    $35.99
    0
  3. Imtra Tower Navigation Bayonet LED Replacement Bulb

    $21.99
    2
  4. Dr. LED Red Polar Star 40 Navigation LED Replacement Bulb - 8001764

    $44.99
    0
  5. Forespar Festoon LED Replacement Bulb (Top) for ML-2 Light - 132325

    $31.16
    0
  6. Dr. LED Green Polar Star 40 Navigation LED Replacement Bulb - 8001771

    $44.99
    0
  7. Dr. LED 28 - 31 mm White Festoon Star Navigation LED Replacement Bulb - 9000173

    $26.09
    1
  8. Dr. LED Hex GE90 Star Navigation LED Replacement Bulb - 9000425

    $26.09
    0
  9. Forespar LED Replacement Bulb (Bottom) for ML-1/ML-2 Light Deck Light - 132335

    $40.76
    0
  10. Dr. LED White Polar Star Navigation LED Replacement Bulb - 9000388

    $71.99
    0
  11. Dr. LED Polar Star 20 Navigation LED Replacement Bulb - 8001849

    $22.49
    0
  12. Hella Marine BAY15D Bayonet Base Replacement Navigation Bulb - 003488301

    $17.32
    0
  13. Dr. LED Dome Light LED Conversion Kit - 9000159

    $21.59
    0
  14. Imtra "Mini Tower" G4 LED Replacement Bulb - ILTWG4-15W

    $11.69
    0
  15. Imtra "X-Beam" G4 LED Replacement Bulb

    $13.28
    0
  16. Dr. LED Bi-Color Polar Star 25 Festoon Navigation LED Replacement Bulb - 8001122

    $44.99
    0
  17. Dr. LED Tower LED Replacement Bulb - Double-Contact Bayonet Non-Indexed BA15D - 9000128

    $13.05
    0
  18. Imtra Festoon Base LED Replacement Bulb

    $12.56
    0
  19. Imtra Tower Bayonet LED Replacement Bulb - ILTW1142-SMW

    $21.99
    0
  20. Dr. LED G4 LED Bulb - 9000104

    $19.57
    0
  21. Dr. LED Red/White Dome Light LED 2-Bulb Conversion Kit - 9000333

    $23.39
    0
  22. Dr. LED Waterproof Mini G4 Star LED Replacement Bulb - 9000432

    $16.87
    0
  23. Scandvik Mini-Tower LED Replacement Bulb - 41034P

    $11.90
    1
  24. 11% off

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

    $25.99
    $22.99
    0
  25. Dr. LED P338 Wedge Star Navigation LED Replacement Bulb - 9000371

    $16.19
    0
  26. SCAD Technologies Ba15d Bayonet Bulb Socket Adapter - 10014

    $7.61
    0
  27. Scandvik Dimmable G4 COB LED Replacement Bulb - 41072P

    $12.87
    0
  28. Perko Festoon Replacement Bulbs

    $10.81 - $16.28
    0
  29. 15% off

    Dr. LED H2492 Star Navigation LED Replacement Bulb - 8000067

    $44.99
    $38.24
    1
  30. Hella Marine BAY15D Bayonet Base Replacement Navigation Bulb - 003488121

    $13.58
    0
  31. Imtra "X-Beam" G4/GU4 LED Replacement Bulb

    $12.56
    0
  32. Imtra Blue "Mini" G4 LED Replacement Bulb - ILSPG4-09B

    $10.73
    0
  33. Imtra Dual Color "X-Beam" G4 LED Replacement Bulb

    $18.93
    0
  34. ACR RCL-100 Searchlight 55W Replacement Bulb - 6003

    $122.99
    0
  35. ACR Replacement Halogen Searchlight Bulb - 6001

    $111.99
    0
  36. Dr. LED G4 LED Disk - 9000081

    $13.49
    0
  37. Dr. LED Magnum MKII LED Replacement Bulb - Double Contact Non-Indexed BA15D - 8001269

    $19.57
    0
  38. 16% off

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

    $17.99
    $14.99
    0
  39. Dr. LED Red G4 SMD LED Disk - 9000098

    $10.79
    0
  40. Dr. LED Red Tower LED Replacement Bulb - 9000135

    $13.05
    0
  41. Dr. LED Single-Sided Wedge Base LED Replacement Bulb - 8001559

    $4.50
    0
  42. Hella Marine Replacement Halogen Flood Light Bulb - H83135051

    $6.77
    0
  43. Imtra "Mini" Bayonet LED Replacement Bulb - ILBA1142-06W

    $12.56
    0
  44. Dr. LED MR16 1X 12V LED Replacement Bulb - 8001825-08

    $20.24
    0
  45. Ancor Medium Screw Base Light Bulbs

    $6.85 - $8.92
    0
  46. 20% off

    Dr. LED Blue G4 LED Disk - 9000364

    $9.00
    $7.20
    0
  47. Dr. LED Edison 1X LED Replacement Bulb - 8001795

    $8.81
    0
  48. 25% off

    Dr. LED Elongated Magnum LED Replacement Bulb - 9000449

    $12.00
    $9.00
    0
 
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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.