OTTLITE B84J35 20w 2 Pin Swirl Bulb TYPE "M"

Ottlite Technologies

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The OttLite 20 watt replacement bulb delivers the right mix of brightness and contrast to bring true colors and comfortable clarity to your world so you can enjoy your time even more. You’ll see colors accurately and fine print and details with ease under this unique low heat, low glare illumination that helps reduce eyestrain.

The output of a 20 watt OttLite bulb is roughly equivalent to that of a 75 watt incandescent bulb. Compact fluorescent bulbs (CFLs), like the ones here at OttLite, require 75% less energy, generate 75% less heat, and last 10x longer than standard incandescent bulbs. However, it's not just about energy-savings, it's also about the quality of the light.

Please check your lamp’s packaging to determine the correct replacement bulb, or contact Ottlite's Customer Service team for help.


This bulb is compatible with the following other bulb models:
B34J32, B34J35-CA, B84J35, B84J33, SB20-M, SB20-M-FFP

  • For use only as a replacement bulb with specific OttLite lamps
  • True colors, clear details and reduced eyestrain
  • Low-heat, low-glare illumination
  • Energy efficient bulb rated to last up to 10,000 hours (Replacement bulb type M)

13 Reviews Hide Reviews Show Reviews

  • 5
    The bulbs arrived in a very timely manner and are exactly as indicated by the company, providing a very bright and daylight type setting, which is excellent for reading.

    Posted by Roger Hogan on 2021 Dec 15th

    Excellent service

  • 5
    Excellent light but might not be available for much longer

    Posted by Ken on 2021 Dec 10th

    We love the Ott light

  • 5
    Replacement light bulb

    Posted by Marie on 2021 Nov 11th

    Very well packed

  • 5
    Ott replacement bulb

    Posted by Marg Gehring on 2021 Oct 29th

    Rec’d very prompt ly in secure packaging and am very impressed with the quality of your service. Many thanks, great to do business with you .

  • 5
    Replacement bulb

    Posted by Roger Allard on 2021 Oct 27th

    Great service

  • 5

    Posted by Bernie kuhn on 2021 Oct 23rd

    Great over the phone help

  • 4
    Replacement bulb

    Posted by Karen on 2021 Oct 13th

    Very good service. Will use again

  • 5
    Replacement bulb B84J35, 20 watt, 2 pin swirl bulb type M

    Posted by sylvia douglas on 2021 Oct 3rd

    exactly what I ordered, came quickly and was very well packaged.

  • 5

    Posted by Donald Hamel on 2021 Oct 2nd

    too bad it is made in china