Model # 409631

Internet #202504387

Store SKU #688951

Philips 28-Watt 4 ft. Linear T5 Fluorescent Alto Light Bulb Cool White
0046677409630

Philips

28-Watt 4 ft. Linear T5 Fluorescent Alto Light Bulb Cool White

  • Provides a cool, white light that is ideal for the home or office
  • Light appearance: 4100K (Cool White)
  • Lasts up to 18.2 years (based on 3 hours/day)
$ 11 97
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Frequently Bought Together

Frequently Bought Together

Product Overview

  • Provides a cool, white light that is ideal for the home or office
  • Light appearance: 4100K (Cool White)
  • Lasts up to 18.2 years (based on 3 hours/day)
The Philips 28-Watt 4 Ft. T5 Cool White Linear Fluorescent ALTO Light Bulb (F28T5/841) can last for up to 3-years or 20,000-hours and uses only 28-Watt of energy. This medium base, bi-pin linear fluorescent bulb provides a cool, white light that works well in both commercial and residential applications. Provides 2900 Lumen per bulb.
  • Brightness: 2900 Lumen
  • Estimated yearly energy cost: $3.38 (based on 3-hours/day, 11c/kWh, cost depend on rates and use)
  • Lasts up to 18.2-years (based on 3-hours/day)
  • Light appearance: 4100K (cool white)
  • Energy used: 28-Watt
  • Lumens per watt: 103.6
  • T5 bulb shape, miniature bi-pin base
  • Contains mercury: yes (for more info on cleanup and safe disposal, visit: epa.gov/cfl)
  • For indoor, commercial and residential use
  • Ideal for indoor general lighting purposes for commercial and residential use
  • Click here for more information on Electronic Recycling Programs

Product Overview

  • Provides a cool, white light that is ideal for the home or office
  • Light appearance: 4100K (Cool White)
  • Lasts up to 18.2 years (based on 3 hours/day)
Model #: 409631
Sku #: 688951
Internet #: 202504387

The Philips 28-Watt 4 Ft. T5 Cool White Linear Fluorescent ALTO Light Bulb (F28T5/841) can last for up to 3-years or 20,000-hours and uses only 28-Watt of energy. This medium base, bi-pin linear fluorescent bulb provides a cool, white light that works well in both commercial and residential applications. Provides 2900 Lumen per bulb.

  • Brightness: 2900 Lumen
  • Estimated yearly energy cost: $3.38 (based on 3-hours/day, 11c/kWh, cost depend on rates and use)
  • Lasts up to 18.2-years (based on 3-hours/day)
  • Light appearance: 4100K (cool white)
  • Energy used: 28-Watt
  • Lumens per watt: 103.6
  • T5 bulb shape, miniature bi-pin base
  • Contains mercury: yes (for more info on cleanup and safe disposal, visit: epa.gov/cfl)
  • For indoor, commercial and residential use
  • Ideal for indoor general lighting purposes for commercial and residential use
  • Click here for more information on Electronic Recycling Programs

Info & Guides

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Specifications

Dimensions

Approximate Light Bulb Length
48
Bulb Diameter (In.)
0.625

Details

Actual Color Temperature (K)
4100
Average Life (hours)
20000
Bulb Construction
Glass
Bulb Shape
Tube
Bulb Type
Linear
Color Rendering Index (CRI)
85
Color Temperature
Cool White
Color Temperature
Cool White
Commercial / Residential
Commercial / Residential
Indoor/Outdoor
Indoor
Light Bulb Base Code
Bi-Pin
Light Bulb Base Type
Bi-Pin
Light Bulb Features
No additional features
Light Bulb Shape Code
T5
Lighting Technology
Fluorescent
Lumens (Brightness)
2900
Number of Bulbs Included
1
Returnable
90-Day
Specialty Bulb Type
Linear
Wattage (Watts)
28

Warranty / Certifications

Manufacturer Warranty
Yes, 18.3 years. Please see package for details.

Specifications

Dimensions

Approximate Light Bulb Length
48
Bulb Diameter (In.)
0.625

Details

Actual Color Temperature (K)
4100
Average Life (hours)
20000
Bulb Construction
Glass
Bulb Shape
Tube
Bulb Type
Linear
Color Rendering Index (CRI)
85
Color Temperature
Cool White
Color Temperature
Cool White
Commercial / Residential
Commercial / Residential
Indoor/Outdoor
Indoor
Light Bulb Base Code
Bi-Pin
Light Bulb Base Type
Bi-Pin
Light Bulb Features
No additional features
Light Bulb Shape Code
T5
Lighting Technology
Fluorescent
Lumens (Brightness)
2900
Number of Bulbs Included
1
Returnable
90-Day
Specialty Bulb Type
Linear
Wattage (Watts)
28

Warranty / Certifications

Manufacturer Warranty
Yes, 18.3 years. Please see package for details.

Questions & Answers

how do I recycle Linear FluorescentLight Bulb ?

Asked by: Tom
City has a disposal (drop off) for that type of waste. Contact them. Usually a website will inform.
Answered by: welter
Date published: 2018-03-29

What is the exact length and diameter? I need a more precise measurement than "approximate".

What is the exact length and diameter? I need a more precise measurement than "approximate".
Asked by: RS
The dimensions are Lightbulb Length 48 Bulb Diameter (In.) 0.625
Answered by: CommunityAnswer
Date published: 2017-09-15

Home Depot: Please include CRI (Color Rendition Index) in all your online lamp product specs

Asked by: Doktor
The CRI is 85.
Answered by: Consumer Lighting Team
Date published: 2015-11-06
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Customer Reviews

28-Watt 4 ft. Linear T5 Fluorescent Alto Light Bulb Cool White is rated 2.1 out of 5 by 16.
Rated 1 out of 5 by from I bought 6 of these bulbs less then a year ago. 4 have already died and the fifth bulb is dim an... I bought 6 of these bulbs less then a year ago. 4 have already died and the fifth bulb is dim and needs to be replaced. I'm going to look for another brand. These didn't come close to lasting the 18+ years they advertise.
Date published: 2019-02-02
Rated 1 out of 5 by from 20,000 hours my foot Bought a new fixture less than a year ago. I didn't realize it required these small, over priced and hard to find bulbs. Two went bad already.
Date published: 2013-08-09
Rated 1 out of 5 by from 28 w 4ft t5 alto fluorescent bulb I wish I had read these reviews before I bought mine. What a piece of junk! Bulbs burned out 3 times this year. Cost me $70 first of year. Home Depot replaced free but I feel I'm wasting my time. The lumens are great but not worth the money and aggravation. Don't know what I'll get next, but not T5s!!
Date published: 2013-12-10
Rated 1 out of 5 by from Did not last Long New home in laundry room. Light was wonderful while it lasted. This bulb lasted only 6 months. For the price very disappointed.
Date published: 2013-06-11
Rated 1 out of 5 by from 3X the price, 1/10 the life comparied to commom size floresents. I installed a new fixture 5 months ago with 2 electronic ballasts powering 3 of these tubes. one tube died after 3 months, the other two died after 5 months. These tubes lights may last 20,000 hrs as the manufacturer claims if installed in the old school iron ballast fixtures, I don't know. But I do know they suffer sudden infant death syndrome (SIDS) if installed into a fixture with electronic ballasts. That aside, they are still 3 to four times the price of any other size tube light. Very dissatisfied.
Date published: 2013-06-23
Rated 1 out of 5 by from Outstanding.... ....ly poor life. Three bulbs installed in a new fixture in a laundry room lasted less than a year with very little use. They failed to start intermittently which developed into a full consistent failure. For an eleven dollar bulb with a 20,000 hour rated life, this is appalling performance. The big box store with the gable logo has house brand bulbs for less than seven dollars.
Date published: 2014-11-02
Rated 1 out of 5 by from t5 junk It's thru they give fantastic light for what they are but they die fast . This 4f bulbs are pure JUNK I purchase 6 fixture and in 18 months I replace all of them (12) and now again Im down to one bulb in each . Out of 6 fixture 2 of them have to be replaced . ***DON't waist your money get the T8 *** I wish I can replace mine for T8
Date published: 2014-12-19
Rated 1 out of 5 by from Buy 2x what you need The fixture I have requires 4-foot 28-Watt T5 fluorescent tubes, they're a great source of light, with a high output to energy usage ratio. Unfortunately Philips (the only T5's Home Depot carries in store) hasn't figured out a way to manufacture a reliable T5. Having read other reviews and having had experience with fluorescent tubes in the past I decided to purchase one extra tube, however of the five tubes I bought, two arrive to DOA. I'll be avoiding Philips in the future, it's too bad that a 126 year old company is still producing products with such a high failure rate.
Date published: 2017-12-01
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