Replacement Bulbs

  1. 14% off

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

    $31.60
    $26.95
    0
  2. 14% off

    Dr. LED Red G4 SMD LED Disk - 9000098

    $18.14
    $15.50
    0
  3. 34% off

    Dr. LED White Polar Star Navigation LED Replacement Bulb - 9000388

    $102.10
    $66.57
    0
  4. Scandvik Replacement Wafer Back-Pin G4 LED Bulb - 41000P

    $12.99
  5. Scandvik Bayonet Base Mini-Tower Bulb - 41090P

    $19.53
  6. Scandvik Festoon Bulb - 360 deg. - 41035P

    $21.44
  7. Scandvik Mini-Bayonet Mini-Tower Parallel Pins - Single Contact Bulb - 41075P

    $17.52
  8. Scandvik G4 Wafer Back-Pin LED Bulb

    $13.60
    1
  9. Scandvik Festoon Wafer Bulb

    $11.75 - $15.39
  10. Scandvik Nav. Festoon Bulb - 360 deg.

    $23.09
  11. Scandvik G4 Base Adapters

    $11.53 - $12.26
  12. Perko Double Contact Bayonet Socket

    $12.89 - $19.87
  13. 9% off

    Whitecap Flush Mount Sidelight Replacement LED

    $51.34
    $46.27
  14. 9% off

    Seachoice Replacement Festoon Bulb - 09891

    $12.23
    $11.06
  15. 9% off

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

    $8.09
    $7.32
    1
  16. 18% off

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

    $5.48
    $4.49
  17. 19% off

    Ancor Mini Halogen Replacement Bulb - 12V - 10W

    $9.34 - $15.16
    $7.59 - $12.24
  18. 48% off

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

    $3.12
    $1.60
    0
  19. 34% off

    Sea-Dog Replacement Incandescent Spreader Light Bulb - 405411

    $54.16
    $35.41
    0
  20. Marinco Replacement Halogen Spotlight Bulb - 24V - 202320

    $12.29
    0
  21. 43% off

    Hella Marine Replacement Halogen Flood Light Bulb - H83135051

    $10.14
    $5.74
    0
  22. Imtra "Mini" G4 LED Replacement Bulb - ILBPG4-09W

    $18.45
    0
  23. 9% off

    Ancor Medium Screw Base Light Bulbs

    $9.57
    $8.66
    0
  24. 14% off

    Dr. LED Edison 1X LED Replacement Bulb - 8001795

    $31.60
    $26.95
    1
  25. 14% off

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

    $42.46
    $36.17
    0
  26. 14% off

    Dr. LED G4 LED Disk - 9000081

    $21.58
    $18.42
    0
  27. 14% off

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

    $41.47
    $35.34
    0
  28. 14% off

    Dr. LED Red Tower LED Replacement Bulb - 9000135

    $21.45
    $18.32
    0
  29. 14% off

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

    $9.61
    $8.25
    0
  30. 14% off

    Dr. LED Tower LED Replacement Bulb - Single-Contact Bayonet Non-Indexed BA15S - 9000111

    $21.45
    $18.32
    0
  31. Scandvik Wedge Base Mini-Tower Bulb - 41095P

    $16.28
    1
  32. Scandvik Warm White A15 Bulb - 41036P

    $16.93
  33. Scandvik Blue LED G4 Halogen Look-Alike Bulb - 41038P

    $14.80
  34. Scandvik MR16 LED Light Bulb

    $18.15 - $19.79
  35. 9% off

    Scandvik G4 Wafer Side-Pin Dual Color Bulb

    $34.42 - $35.83
    $31.04 - $32.31
  36. Scandvik Bayonet Compact-Tower Parallel Pins - Single Contact Bulb

    $18.28
  37. Scandvik Bayonet Base Wafer Parallel Pins - Dual Contacts Bulb

    $17.77
  38. Perko Combination Masthead/Anchor Lights Converter Module - 12V - 1680DP012V

    $95.69
  39. 9% off

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

    $23.71
    $21.40
  40. 9% off

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

    $62.62
    $56.42
  41. Perko Wedge Base Bulb

    $15.45 - $16.15
  42. 9% off

    Perko Double Contact Bayonet Indexing Base Bulb

    $56.98 - $76.72
    $56.98 - $69.11
  43. 9% off

    Seachoice LED Replacement Bulb - 12V - 02501

    $38.65
    $34.85
  44. 9% off

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

    $6.37
    $5.79
  45. 9% off

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

    $6.37
    $5.79
  46. 9% off

    Seachoice Replacement LED Bulb - 25/8W - 09981

    $12.85
    $11.62
  47. 9% off

    Seachoice Replacement Red Light Bulb - 12V

    $7.41
    $6.72
  48. 9% off

    Seachoice Bayonet Socket

    $12.70 - $14.49
    $11.48 - $13.09

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.