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OTTLITE T18330 18w Replacement Bulb TYPE B

Ottlite Technologies

(9 reviews) Write a Review
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The OttLite 18 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 18 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.

If the base of your existing 18w Type B bulb differs slightly in appearance than the bulb pictured on this page, please contact Ottlite's Customer Service team @ 1-800-842-8848 for instructions on how to safely and easily modify your fixture to accommodate the newer style bulb.

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

This bulb is compatible with the following other bulb models:

T24J3S-CA, 7T18CH-CE, T18330, T186C0, 7T18CH-SE, 7T18CH-UK, T40112, OTL18TCB, PL18-B-FFP, PL18-B


  • 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 B)

    Sku: T18330


9 Reviews Hide Reviews Show Reviews

  • 4

    Posted by Patti on 2021 Oct 29th

    Fits very snug. Had to really push the bulb into socket site. Otherwise works great. Gives excellent light!

  • 4
    It worked great

    Posted by Karen on 2021 Oct 22nd

    The bulb fit and works great. The service was awesome and so helpful. Much faster than I thought they said it would be. Would use this company again

  • 5
    Ott lite replacement bulb

    Posted by Janet Cole on 2021 Sep 9th

    Ordered a replacement bulb for a floor lamp. Had tried unsuccessfully with several other companies to find a replacement bulb. This company provided amazing customer service and follow up emails so I could track my shipment. Well done!!!

  • 5
    Replacement bulb comment

    Posted by Louis Diclemente on 2021 Jul 30th

    Excellent light bulb. Give bright light. The first bulb lasted a long time

  • 4
    Excellent product

    Posted by Louise Wall on 2021 May 24th

    Thank you for prompt service

  • 5
    I have had an Ott light for almost 20 yrs with the same bulb. I was told that the replacement balls were no longer available by someone so I was thrilled to find them on your site

    Posted by Jeanette Lewis on 2021 May 24th

    Well I haven’t used it I’m sure it will work fine. Found the tracking section was not up to par. I wasn’t notified until a day later when things moved I E was notified the day after it was delivered that it was delivered

  • 3
    Ottlite 18w pl tube

    Posted by Gaston Sauvé on 2021 Apr 17th

    The product installed on ottlite lamp failed the 1st week of April after the lite functionned dimmed during 3 weeks. Product duration is null. Fortunately I had ordered 2 replacement bulb. I hope to be more fortunate with the second one. Otherwise i was well serves and with attention

  • 5
    Replacement bulb type B

    Posted by Monique Lacoste on 2021 Apr 8th

    Good service, spécial thanks to the réceptionniste

  • 5

    Posted by GastoN sauvé on 2021 Mar 3rd

    Well served and promptly