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Product Overview:
  • 20-9/16 inches long
  • High color rendering
  • 16,000 hour life
  • Choose light color
  • Learn More

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20 Watt - Fluorescent Light Bulb - Linear - T4 - 82 CRI

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20 Watt - Fluorescent Light Bulb - Linear - T4 - 82 CRI

Item #PSL-L20
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AvailabilityUsually ships the next business day
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About our 20 Watt - Fluorescent Light Bulb - Linear - T4 - 82 CRI

    These 20-watt T4 fluorescent light bulbs have a high color rendering index and a rated life of 16,000 hours.

  • 7 Models:

    Warm White
    Cool White
    Daylight White
    Red Blue Green Black
    20 Watts PSL-L20-30 PSL-L20-41 PSL-L20-64 PSL-L20-RD PSL-L20-BU PSL-L20-GN PSL-L20-BK
  • Diameter: 4/8in (0.5in)
  • Nominal Length: 20-9/16 inches long (Nominal Length for linear fluorescent light bulbs includes the length of the lamp and pins plus "the proper allowance for standard lamp sockets".)
  • Very Good CRI: is 82+ for all white lamps below
  • Bipin Base: bipin base at both ends
  • 3 Color Temperatures: 3000K (warm white), 4100K (cool white), 6400K (daylight)
  • 3 Colors: red, blue, green, black light
  • Very Good Rated Life: 16,000 hours of rated life on average
  • Large Quantity Discount: If you would like us to quote on a large quantity of 20-Watt T4 Fluorescent Light Bulbs, please call us at our toll-free number or use the online Quotation Request for Large Quantities form.  We are always happy to provide you with our best large quantity pricing.

    Satisfaction Guarantee

Product Reviews
20 Watt - Fluorescent Light Bulb - Linear - T4 - 82 CRI
4.5 Stars based on 4 Review(s)
Southeast, PA
5 Stars
I would recommend this item to a friend.

Top-Quality Bulbs + Top-Quality Shipment = Happiness
September 8, 2014
I have had T4 under-cabinet lights for about seven years and have replaced the bulbs several times. My last two replacement orders were through Pegasus. Before that I purchased T4 bulbs through another on-line supplier and had to deal with defective bulbs and/or bulbs damaged in shipment. ALL of the bulbs delivered by Pegasus were exactly what I ordered and were received in excellent condition. Pegasus sells top-quality bulbs and they take extra care in packaging their bulbs for shipment (rigid shipping tubes and lots of bubble-wrap!). I would highly recommend Pegasus for your T4 bulbs.
Top-quality bulbs that are never dead-on-arrival Good color quality Long-lasting

St Louis, Mo
5 Stars
I would recommend this item to a friend.

Great lighting for price.
June 26, 2013
Item was easy to install as replacement bulb. Original fixture and bulb purchased from Pegasus. Great packaging and on-time.
Just as described per website.

5 Stars
I would recommend this item to a friend.

Love the warm!
January 29, 2012
We use these warm bulbs under our kitchen cabinets and they are perfect!
Great color

Bay Area, CA
3 Stars
I would recommend this item to a friend.

no complaints
February 5, 2011
I haven't actually needed this yet; it's a backup for when I may need to replace the one that came with the fixture.
Good light, long-lasting
The requirement two buy at least TWO. They last so long, I may never need the next one!

Questions & Answers
By Judith Hintz from Ft. Myers, Florida on April 3, 2013
I am looking for the F20T4 bulb in a 22 inch length. I need replacements bulbs that size to fit my fixtures. Can you help me out?
By Jacob from Pegasus Lighting on April 3, 2013


The standard nominal length for an F20T4 is 20-9/16in. I'm afraid I am not aware of any F20T4 lamps that are 22in long.

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