Model # 409748

Internet #202504341

Store SKU #209974

null 21 in. T5 13-Watt Cool White (4100K) Linear Fluorescent Light Bulb
0046677409746

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

  • For general use including indoor, commercial and residential use
  • Light appearance: 4100K (Cool White)
  • Lasts up to 6.8 years (based on 3 hours/day)
$857 /each
(limit 35 per order)
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Product Overview

  • For general use including indoor, commercial and residential use
  • Light appearance: 4100K (Cool White)
  • Lasts up to 6.8 years (based on 3 hours/day)
For effective residential and commercial lighting, select the Philips 13-Watt 21 in. T5 Cool White Linear Fluorescent Light Bulb. It produces cool, white light and can last up to three years. The T5 linear fluorescent bulb has a medium, bi-pin base. It is meant for indoor use.
  • Brightness: 820 lumens
  • Estimated yearly energy cost: $1.57
  • Life: 6.8 years (Based on three hours/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 cleanup and safe disposal, visit: epa.gov/cfl)
  • Brighten up with the right light fixtures. Check out our Buying Guide for helpful tips.

Product Overview

  • For general use including indoor, commercial and residential use
  • Light appearance: 4100K (Cool White)
  • Lasts up to 6.8 years (based on 3 hours/day)
Model #: 409748
Sku #: 209974
Internet #: 202504341

For effective residential and commercial lighting, select the Philips 13-Watt 21 in. T5 Cool White Linear Fluorescent Light Bulb. It produces cool, white light and can last up to three years. The T5 linear fluorescent bulb has a medium, bi-pin base. It is meant for indoor use.

  • Brightness: 820 lumens
  • Estimated yearly energy cost: $1.57
  • Life: 6.8 years (Based on three hours/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 cleanup and safe disposal, visit: epa.gov/cfl)
  • Brighten up with the right light fixtures. Check out our Buying Guide for helpful tips.

Info & Guides

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Name 12 in. T5 8-Watt Cool White (4100K) Linear Fluorescent Light Bulb 21 in. T5 13-Watt Cool White (4100K) Linear Fluorescent Light Bulb 24-Watt T5 Red Linear Fluorescent Light Bulb Replacement for 2 ft. H/O 2700K Flowering Plant Grow Light 24-Watt T5 Blue Linear Fluorescent Light Bulb Replacement for 2 ft. H/O 6500K Full Spectrum Grow Light
Brand Philips ViaVolt ViaVolt
Ratings (130) (88) (7) (16)
Light Color Cool White Cool White Cool White Cool White
Lumens 400 820 2000 2000
Wattage (watts) 8 13 24 24
Bulb Type Household Household Specialty Specialty
Light Bulb Base Type Bi-Pin Bi-Pin Bi-Pin Bi-Pin
Light Bulb Shape Code T5 T5 T5 T5
Number in Package 1 1 1 1
View Product View Product View Product View Product

Specifications

Dimensions

Approximate Light Bulb Length
24
Bulb Diameter (In.)
0.625

Details

Average Life (hours)
7500
Bulb Shape
Tube
Bulb Type
Household
Commercial / Residential
Commercial / Residential
Indoor/Outdoor
Indoor
Light Bulb Base Type
Bi-Pin
Light Bulb Features
No additional features
Light Bulb Shape Code
T5
Light Color
Cool White
Lighting Technology
Fluorescent
Lumens
820
Lumens (Brightness)
820
Number in Package
1
Returnable
90-Day
Wattage (watts)
13

Warranty / Certifications

Manufacturer Warranty
Yes, 6.8 years. Please see package for details.

Specifications

Dimensions

Approximate Light Bulb Length
24
Bulb Diameter (In.)
0.625

Details

Average Life (hours)
7500
Bulb Shape
Tube
Bulb Type
Household
Commercial / Residential
Commercial / Residential
Indoor/Outdoor
Indoor
Light Bulb Base Type
Bi-Pin
Light Bulb Features
No additional features
Light Bulb Shape Code
T5
Light Color
Cool White
Lighting Technology
Fluorescent
Lumens
820
Lumens (Brightness)
820
Number in Package
1
Returnable
90-Day
Wattage (watts)
13

Warranty / Certifications

Manufacturer Warranty
Yes, 6.8 years. Please see package for details.

Questions & Answers

I have a Sylvania Cool White F13T5/CW light bulb. I measured it 20 1/2 inches. But this T5 13W 4100K is 21 inches. Are they different?

Asked by: John
Yes this should fit. The 21 inches includes the pins. That might account for difference in size. Bulb sizes are standardized. There aren't aren't multiple bulb sizes that are all within a 1/4" of each other. Possible exception if the bulb was made to fit one specific light fixture. Then you would have buy the bulb from the manufacture of the light fixture.
Answered by: ricky
Date published: 2018-01-03

How does one remove the bulb safety?

Asked by: Joe
Disconnect power to light fixture
Answered by: Mike
Date published: 2017-12-06

Is there an LED replacement for this light?

Asked by: Jd
They are available, I have seen them online, not Philips brand. The LED bulb is more than triple the price but has a much longer service life.
Answered by: Don
Date published: 2017-02-19
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Customer Reviews

21 in. T5 13-Watt Cool White (4100K) Linear Fluorescent Light Bulb is rated 4.1 out of 5 by 87.
Rated 4 out of 5 by from My pair of 33" long T5 lamps each has one 21" and one 13" bulb in-line. I purchased these bulbs a... My pair of 33" long T5 lamps each has one 21" and one 13" bulb in-line. I purchased these bulbs after one of my 4 bulbs burned out. These bulbs are nice and bright. I also like the white color tone. However, after inserting these new bulbs, one of my lamps only operates for an hour before winking out. Turn off the power for 5 minutes and I'll get another hour of light. I've swapped bulbs between lamps, but that made no difference. It seems that one of my T5 lamps now overheats after an hour and shuts down. This didn't happen before I replaced the old bulbs. Perhaps they drew slightly less current, or maybe one ballast is failing and that is why a bulb burned out. Fluorescent lights can be temperamental. To date there is no pop-in direct LED replacement for these T5 bulbs. Too bad. DougB
Date published: 2018-01-03
Rated 4 out of 5 by from Bulb was a replacement that went in an under cabinet kitchen fixture. Seems to work fine, does n... Bulb was a replacement that went in an under cabinet kitchen fixture. Seems to work fine, does not get used a lot so should last a long time. A bit expensive for such a small bulb in my opinion but Philips products are usually good brand.
Date published: 2017-12-12
Rated 5 out of 5 by from Excellent light bulb. Easy install. Nice bright light, just what I wanted. Best part of the deal ... Excellent light bulb. Easy install. Nice bright light, just what I wanted. Best part of the deal was that I got free shipping and received it about a day and a half. Wasted no time running to the store and back.
Date published: 2018-01-02
Rated 1 out of 5 by from I’m having to replace these bulbs that go under my... I’m having to replace these bulbs that go under my kitchen cabinets every six months. There’s always one going out every few months. I just think they should last longer than that.
Date published: 2018-01-17
Rated 5 out of 5 by from used for under cabinet lighting --works very well......i hope... used for under cabinet lighting --works very well......i hope home depot continues to carry these bulbs as they are getting harder to find in the h.d. stores
Date published: 2017-08-02
Rated 5 out of 5 by from Needed to replace a burned out bulb and ordering on-line for pickup at the store made it easy and... Needed to replace a burned out bulb and ordering on-line for pickup at the store made it easy and quick.
Date published: 2017-11-02
Rated 5 out of 5 by from This replacement Tube is great ,I did not have to replace the under the cabinet fixture. This replacement Tube is great ,I did not have to replace the under the cabinet fixture.
Date published: 2017-12-06
Rated 5 out of 5 by from The bulbs were great! Delivery of bulbs were quick with... The bulbs were great! Delivery of bulbs were quick with excellent packaging
Date published: 2017-10-27
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