Replacement Bulbs

  1. Scandvik MR16 LED Light Bulb

    $17.41 - $18.97
  2. Scandvik G4 Wafer Side-Pin Dual Color Bulb

    $28.93 - $30.28
  3. Scandvik Festoon Wafer Bulb

    $11.28 - $14.76
  4. Marinco Replacement Halogen Spotlight Bulb - 12V - 202319

    $11.43
    0
  5. Imtra "Mini" Bayonet LED Replacement Bulb - ILBA1156-06W

    $17.69
    0
  6. 9% off

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

    $15.21
    $13.75
    0
  7. Dr. LED Red Tower LED Replacement Bulb - 9000135

    $18.22
    0
  8. Ancor Medium Screw Base Light Bulbs

    $9.18 - $11.74
    0
  9. Perko Double Contact Bayonet Socket

    $11.16 - $16.56
  10. Seachoice Replacement Red Light Bulb - 12V

    $6.96
  11. Seachoice Bayonet Socket

    $9.62 - $11.14
  12. Perko Sealed Beam Unit - 2 3/4" - 043200112V

    $57.28
  13. Perko Wedge Base Bulb

    $13.09 - $13.65
  14. Perko Double Contact Bayonet Indexing Base Bulb

    $53.23 - $70.78
  15. 40% off

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

    $3.01
    $1.80
    0
  16. 29% off

    Sea-Dog Replacement Incandescent Spreader Light Bulb - 405411

    $51.88
    $36.49
    0
  17. Scandvik Blue LED G4 Halogen Look-Alike Bulb - 41038P

    $14.19
  18. Scandvik Bayonet Compact-Tower Parallel Pins - Single Contact Bulb

    $17.53
  19. Scandvik Bayonet Base Wafer Parallel Pins - Dual Contacts Bulb

    $15.35
  20. Scandvik G4 Base Adapters

    $9.81 - $10.76
  21. ACR RCL-50 Searchlight Replacement Bulb - 55W - 6002

    $91.03
    0
  22. 9% off

    Mast Products G4 COB LED Replacement Bulb

    $17.88
    $16.15
    0
  23. Marinco Guest Spotlight Bulb Replacement Kit with Bezel - 729494

    $96.43
    0
  24. Marinco Replacement Halogen Spotlight Bulb - 24V - 202320

    $11.79
    0
  25. 38% off

    Hella Marine Replacement Halogen Flood Light Bulb - H83135051

    $9.74
    $5.98
    0
  26. Imtra "Mini" G4 LED Replacement Bulb - ILBPG4-09W

    $17.69
    0
  27. Imtra Dual Color "X-Beam" G4 LED Replacement Bulb

    $26.36
    0
  28. 19% off

    Dr. LED Blue G4 LED Disk - 9000364

    $12.75
    $10.32
    0
  29. 29% off

    Dr. LED Elongated Magnum LED Replacement Bulb - 9000449

    $16.80
    $11.92
    0
  30. 29% off

    Dr. LED G4 LED Disk - 9000081

    $18.81
    $13.34
    0
  31. Dr. LED Magnum MR16 1X LED Replacement Bulb - 8001825

    $30.28
    0
  32. Dr. LED Single-Sided Wedge Base LED Replacement Bulb - 8001559

    $6.67
    0
  33. Dr. LED Tower LED Replacement Bulb - Single-Contact Bayonet Non-Indexed BA15S - 9000111

    $18.22
    0
  34. Seachoice Replacement Bulb (2-Pack) - 12W - 09951

    $6.08
  35. Seachoice Replacement LED Bulb - 25/8W - 09981

    $11.78
  36. Seachoice Replacement Bulb - 10W - 09991

    $6.69
  37. Perko Sealed Beam Unit - 7" - 043300312V

    $112.65
  38. Scandvik Bayonet Base Wafer Offset Pins - Dual Contacts Bulb - 41088P

    $15.35
  39. Scandvik Wedge Base Tower Bulb - 41092P

    $16.56
  40. Scandvik Wedge Base Bulb - 41097P

    $17.78
  41. Scandvik Warm White A19 Bulb - 41037P

    $19.58
  42. Scandvik GU10 LED Bulb - 41114P

    $22.71
  43. 9% off

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

    $16.45
    $14.87
    0
  44. Seachoice LED Replacement Bulb for Portable Battery Operated Navigation Light - 02511

    $13.65
  45. Seachoice LED Replacement Bulb - 12V - 02501

    $34.33
  46. Seachoice Replacement Bulb - 3W - 09921

    $11.53
  47. Seachoice Replacement Halogen Bulb

    $7.39 - $8.23
  48. Whitecap Flush Mount Sidelight Replacement LED

    $43.78

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.