Free Shipping and BOPIS


Model # 409748

Internet # 202504341

Store SKU # 209974

21 in. T5 13-Watt Cool White (4100K) Linear Fluorescent Light Bulb

This item has been discontinued.
The Home Depot no longer carries this specific product.

$8.47 /each
(limit 35 per order)




Model # 409748

Internet # 202504341

Store SKU # 209974

The Philips 13-Watt 21 in. T5 Cool White Linear Fluorescent Light Bulb provides a cool, white light that works well for both residential and commercial settings. This T5 linear fluorescent bulb has a medium, bi-pin base, and can lasts for up to 3 years. It is meant for indoor use.

  • Brightness: 820 lumens
  • Estimated yearly energy cost: $1.57
  • Life: 6.8 years (Based on 3 hrs/day)
  • Light appearance: 4100K (cool white)
  • Energy used: 13 Watt
  • Lumens per watt: 63
  • Contain less mercury than standard fluorescent bulbs
  • For general use including indoor, commercial and residential use and ideal for home or office for versatility
  • Bi-Pin
  • Contains mercury: yes (for more info on clean-up and safe disposal, visit:

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.


Approximate Lightbulb Length 
Bulb Diameter (In.) 
Average Life (hours) 
Bulb Shape 
Bulb Type 
Commercial / Residential 
Commercial / Residential 
Light Bulb Base Code 
Light Bulb Base Type 
Light Bulb Features 
No additional features 
Light Bulb Shape Code 
Light Color 
Cool White 
Light Output (lumens) 
Lighting Technology 
Number in Package 
Watt Equivalence 
Wattage (watts) 
Warranty / Certifications
ENERGY STAR Certified 
Manufacturer Warranty 
Yes, 6.8 years. Please see package for details. 


Rated 3.5 out of 5 by 22 reviewers.
Rated 5.0 out of 5.0 by Great replacement bulb Needed to replace my desk light. Be sure to measure for appropriate length. September 21, 2015
Rated 1.0 out of 5.0 by Could be manufactured for longer life These lights are short lived and costly. I am in process of re engineering the facility to accommodate a more efficient system. October 20, 2015
Rated 1.0 out of 5.0 by Replacement bulbs for HD fixtures HD does not seem to carry the proper replacement bulbs for their fixtures for very long. Twice now I have had to either replace the fixture or go on-line as I did this time and buy bulbs that would fit the HD fixture from different suppliers. August 25, 2015
Rated 5.0 out of 5.0 Linear Fluorescent Light Bulbs I have two lights that require the above mentioned bulbs in my kitchen. They were exactly what I was looking for as a replacement. A little pricey but all light bulbs are expensive now. August 11, 2015
Rated 5.0 out of 5.0 by Good Color I still like fluorescent over LED or halogen. I get good color and long life. Philips quality is as good as you would expect from a major mfg. I'm old school I guess. January 29, 2014
Rated 2.0 out of 5.0 by The one I got appeared to be "used" When I got home with the bulb and took it out of the package, which appeared to be opened before, the bulb had dark spots at each end reminisence of a used bulb. It worked, but for how long, remains to be seen. August 5, 2014
Rated 2.0 out of 5.0 by Bulbs are disappointing Bulbs do not last very long and I have to change them too often. August 5, 2014
Rated 5.0 out of 5.0��by Very nice and puts out so much more light I love the cool light that this bulb gives, it is bright enough to read by 6 feet up on the ceiling of our porch. It is so much brighter than ordinary bulbs. April 21, 2015
  • 2015-11-23 T11:24:30.787-06:00
  • bvseo_lps, prod_bvrr, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasreviews, tv_22, tr_22
  • loc_en_US, sid_202504341, prod, sort_default
2 >>