Philips 4 ft. T8 32-Watt Cool White (4100K) ALTO Linear Fluorescent Light Bulb (30-Pack)-281972 - The Home Depot


Model # 281972

Internet # 203479914

Store SKU # 260011

4 ft. T8 32-Watt Cool White (4100K) ALTO Linear Fluorescent Light Bulb (30-Pack)

Philips 4 ft. T8 32-Watt Cool White (4100K) ALTO Linear Fluorescent Light Bulb (30-Pack)

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

$55.00 / case


Model # 281972

Internet # 203479914

Store SKU # 260011

Philips Linear Fluorescent 32-Watt T8 cool white light bulb is ideal for use in garages, basements and workshops. It provides a cool white light that is ideal for a work-like environment. Philips Linear Fluorescent T8 light bulbs feature ALTO Lamp technology.

  • Brightness: 2800 lumens
  • Estimated yearly energy cost: $3.85 (Based on 3 hrs/day, 11c/kWh. costs depend on rates and use)
  • Life: 27.4 years (Based on 3 hrs/day)
  • Light Appearance: 4100K
  • Energy used: 32 Watt
  • Lumens per watt: 87.5
  • Philips linear fluorescent T8 cool white light bulbs are ideal for use in garages, workshops and basements
  • Cool white light creates a work-like environment
  • Features ALTO II Lamp technology
  • T8 Shape, Bi-pin base
  • Contains mercury: yes (for more info on clean-up and safe disposal, visit:

Info & Guides

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Approximate Lightbulb Length  48  Bulb Diameter (In.) 
Product Length (in.)  48 
Actual Color Temperature (K)  4100  Average Life (hours)  30000 
Bulb Shape  Linear  Bulb Type  Household 
Color Rendering Index  78  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  T8  Light Color  Cool White 
Light Output (lumens)  2800  Lighting Technology  Fluorescent 
Number in Package  30  Returnable  90-Day 
Start-Up Type  Instant  Watt Equivalence 
Wattage (watts)  32 
Warranty / Certifications
ENERGY STAR Certified  No  Manufacturer Warranty  Yes. See "more information' tab for details. 


Rated 3.5 out of 5 by 20 reviewers.
Rated 2.0 out of 5.0 by High out-of-box failure rate Bought 3 cases of these bulbs to do a refresh of our gym at my church. So far, I've had a 30% failure rate right out of the box. Bulbs were dark-patched or flickery like the old ones that had to warm-up on a magnetic ballast. Brand new ballasts and did bulb swapping to make sure problem was with specific bulb and not some other factor. If I was not well into this project, I would return all the bulbs and go with a different brand. I may still do that with the remaining ones. December 16, 2013
Rated 5.0 out of 5.0 by great lights the lights are inexpensive, they seem to last a long time in a commercial setting, the light is just right February 11, 2015
Rated 1.0 out of 5.0 by 33% Garbage I know with that low-mercury bulbs need a few hours to achieve full brightness, but one third of the bulbs I've tried out of the box are total failures and never go past dim. Those that do light up are inconsistent in color, some being warm and others being bluish. Don't waste your time on these. January 25, 2015
Rated 3.0 out of 5.0 by T-8 Fluorescent bulb Happy with service, good price on t-8 tubes, would use Home Depot again. January 13, 2015
Rated 5.0 out of 5.0 by Awesome! We are sooo glad to find a resource for our lights! December 17, 2014
Rated 5.0 out of 5.0 by good product excellent life span on a 4100 cool white tube. So, why pay extra for a product that can last for years. December 11, 2014
Rated 4.0 out of 5.0 by Cool white lights The lights are quality manufactured and are easy to install. They provide excellent illumination for the cost. September 30, 2014
Rated 3.0 out of 5.0 by Tubes are good, but packed badly so some arrived broken. The summary says nearly all of it. I called when I opened the box and found what seemed like missing tubes. No, they were at the bottom of the channels, broken. I called immediately, and replacement tubes were supposedly to be shipped immediately. I realized a couple of days ago that they have never arrived. If the tubes had been in stock at a store I would recommend, but not if you have to have them shipped. February 18, 2014
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