Chat Contact Us Contact Us
Now In: Light Bulbs  >  Fluorescent Light Bulbs  >  Linear Fluorescent Tube Light Bulbs  >  T4 Fluorescent Light Bulbs  >  12 Watt - Fluorescent Light Bulb - Linear - T4 - 82 CRI

Product Overview:
  • 17 inches long
  • High color rendering
  • 16,000 hour life
  • Choose light color
  • Learn More

Need Assistance?

Have a Question?

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

Pegasus Lighting BBB Business Review

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

Item #PSL-L12
OptionsSelect a Color Temperature or Color: 
AvailabilityUsually ships in 2-3 business days
Quantity  Add to cartAdd to Wishlist

About our 12 Watt - Fluorescent Light Bulb - Linear - T4 - 82 CRI

    These 12-watt T4 fluorescent light bulbs have a high color rendering index and a rated life of 16,000 hours.

  • 6 Models:

    Warm White
    Cool White
    Daylight White
    Red Blue Green
    12 Watts PSL-L12-30 PSL-L12-41 PSL-L12-64 PSL-L12-RD PSL-L12-BU PSL-L12-GN
  • Diameter: 4/8in (0.5in)
  • Nominal Length: 17 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
  • 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 12-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
12 Watt - Fluorescent Light Bulb - Linear - T4 - 82 CRI
3.5 Stars based on 10 Review(s)
Barbara McCloud
Cookeville, Tn.
5 Stars
I would recommend this item to a friend.

T4 Fluorescent Light Bulb
January 27, 2012
I had spent days looking in stores for this bulb. I was told I probably wouldn't find it, that it had been discontinued. So I went online to Pegasus Lighting and there it was at a very good price. I am thrilled and would recommend this site to anyone. The process was easy and shipping was fast.

Pamela Gray
Lubbock, TX
5 Stars
I would recommend this item to a friend.

These Replacement Bulbs Perfect
October 11, 2014
These replacement bulbs for my built-in desk light are impossible to find in stores. These fit perfectly and the lighting is just right.
Availability. Price. Prompt delivery.

Anthony Silvestri
Butler, NJ
1 Stars

Light bulbs do not work
September 10, 2013
I ordered these bulbs, and they were delivered quickly. However, neither of the 2 I ordered functioned. I contacted Pegasus Lighting immediately, and they were very good about sending 2 replacement bulbs. However, neither of the bulbs work. I give up!

Clovis, NM
5 Stars
I would recommend this item to a friend.

Hard to Find Light Bulb
July 21, 2013
I looked all over town and several places on the Internet until I found Pegasus. Even the local home store where I bought the original light fixture didn't carry this bulb anymore. I am very happy with this purchase and if I ever need replacement bulbs again, I will definitely be returning to reorder.
Easy ordering, excellent shipping tracking.

4 Stars
I would recommend this item to a friend.

Good product. Excellent delivery time
May 4, 2013
Good product. Excellent delivery time

Gig Harbor, WA
4 Stars
I would recommend this item to a friend.

Bright Light
March 25, 2013
Bulb gives bright light for my desk. Exactly what I wanted.
Good light
Spendy for a bulb!

Fremont, Nebraska
1 Stars

Highly disappointed with the bulb itself.
February 21, 2013
It says it's 17 inches, but I don't know how you guys measure these things, but it was 1/4 inch too long. Didn't work. Pissed because it's not worth the time & money to send back. I threw my sign away because there is no bulb in the world that will fit it apparently.
Merchant Response:
The nominal length of these 12W T4 lamps are indeed 17 inches.
I didn't like a thing about it.
I disliked everything about the bulb.

Monica Edwards
Alexandria, VA
2 Stars

December 12, 2012
Ordering was straightforward and the bulbs arrived in good condition. The bulbs I have installed are disappointing as the quality of the light is mixed - bright, but "strobe-like". I am keeping the bulbs ( I purchased six) because I cannot find them in local stores, but I am tempted to switch out the entire fixture to avoid having to deal with light which makes me wonder if I am beginning to have a seizure. I do not recommend these bulbs.
The bulb gives off strong light.
The light it gives off has a "strobe-like" quality.

New Orleans, LA
5 Stars
I would recommend this item to a friend.

12-Watt T4 Fluorescent Light Bulbs
October 6, 2012
These bulbs came well packaged to prevent breakage. This makes it easy to store them for future use. I hope these unique products will be kept in stock for a long time. They are easy to use and provide effective lighting.
Compact and effective lighting.

Paradise Valley, AZ
5 Stars
I would recommend this item to a friend.

t4 bulb
June 13, 2012
It is just as promised. I was having trouble finding this bulb for my aquarium. Not only did you have it but at a great price so I bought two. They arrived very promptly.

Questions & Answers
By John Ruggiero from Florida on January 24, 2015
Hello I have a Lightex 12w 6400k bulb out of a sign that is burned out. It measures 16 inches from end to end excluding pins. 16 & 7/8 inches including pins. Will this bulb fit? Thanks
By Jacob from Pegasus Lighting on January 26, 2015

No, it will not fit.

The length of this bulb from pin-to-pin is 16-31/32in.

The length of the lamp without the pins is 16.5in.
By Kurt from Oakland, Iowa on January 25, 2015

No it will not.

By Priscilla from London, UK on November 23, 2014
Can you help? I am looking for a T4 12W 2700K RoHS light bulb that is 443mm including pins.
By Jacob from Pegasus Lighting on November 24, 2014

Priscilla, this bulb is 17inlong. 443 mm is about 17.44in long so it will not work.

By Tom from Fallston, Md on April 1, 2013
What is the actual measurement from pin tip to pin tip?

Thank you!
By Jacob from Pegasus Lighting on April 2, 2013

Tom, the length is 17in.

By Martin from Europe on August 19, 2013
What is the length excluding pins?
By Mark from Gig Harbor, WA on August 19, 2013

The length of the bulb without pins is 16 1/2" and is 17" with pins. I purchased them for the light under my desk because it is a uncommon size and these were the best deal I could find. I bought three and am still on my first one which has lasted longer than the original!

By Russ from Queen Creek, Az on June 1, 2013
I have under cabinet light that is made by Tresco international. I need replacement fluorescent bulbs. Sizes are T4. One is T4 standard 6w 2700k 800-227-1171 (8 13/16) and the other one is T4 standard 12 2700K 800-227-1171 (14 1/2). Can I buy them? Or is there a replacement bulb? Russ

By Jacob from Pegasus Lighting on June 3, 2013


We do not sell the exact part numbers you specify.

Please see our 6W T4 light bulbs here:

Please see our 12W T4 light bulbs here: Note that these are a bit longer than your models, so I do not think they would fit.

Recently Viewed Items
Related Items
Related Categories