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Model # 422949

Internet # 203466585

Store SKU # 159367

4 ft. T8 32-Watt Daylight Deluxe (6500K) ALTO Linear Fluorescent Light Bulb (10-Pack)

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

$33.97 / case



Model # 422949

Internet # 203466585

Store SKU # 159367

Create a cool and refreshing environment with the Philips 32-Watt 4 ft. T8 Daylight Deluxe Linear ALTO Fluorescent Light Bulbs. These light bulbs cast an arctic white light making them ideal for bathrooms, laundry rooms or any room. The long-lasting bulbs can shine up to 30,000 hours using 2,750 lumens. These bulbs feature ALTO low-mercury technology for environmentally friendly use.

  • Brightness: 2750 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: 6500k (daylight)
  • Energy used: 32 Watt
  • Lumens per watt: 85
  • For indoor, commercial and residential use
  • Casts an arctic, white light perfect for commercial or residential general purpose use in bathrooms, laundry rooms or kitchens
  • T8, Bi-pin
  • Fluorescent lamp with ALTO technology has a reduced mercury content for an environmentally friendly alternative to standard bulbs
  • Contains mercury: yes (for more info on clean-up and safe disposal, visit:

Info & Guides

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Approximate Lightbulb Length 
Bulb Diameter (In.) 
Product Length (in.) 
Actual Color Temperature (K) 
Average Life (hours) 
Bulb Shape 
Bulb Type 
Color Rendering Index 
Commercial / Residential 
Commercial / Residential 
Light Bulb Base Code 
Light Bulb Base Type 
Light Bulb Features 
No additional features 
Light Bulb Shape Code 
Light Color 
Daylight Deluxe 
Light Output (lumens) 
Lighting Technology 
Number in Package 
Start-Up Type 
Watt Equivalence 
Wattage (watts) 
Warranty / Certifications
ENERGY STAR Certified 
Manufacturer Warranty 
Yes, 8 Years. See "More Information tab" for details. 


Rated 3.8 out of 5 by 52 reviewers.
Rated 5.0 out of 5.0 by Daylighting Good I have installed these in my shop and am very satisfied. I chose this bulb due to the high color temperature. Downside is that they are more expensive than other choices. After approximately 6 months, I have not had any problems. The previous post indicated that they might burn out fast. I had this problem with a different flourescent tube bulb, but only after I had put it on a motion sensor. I discovered that the life of flourescent bulb was greatly shortened by frequent cycling of the ight on and off. December 9, 2012
Rated 5.0 out of 5.0 by Bright lights I installed eight of these in my 16'x20' shop. They are bright and provide even light for using woodworking tools. February 10, 2015
Rated 1.0 out of 5.0 by Performance Don't make me laugh. "The long-lasting bulbs can shine up to 30,000 hours, Average Life (hours) 30000, Life: 27.4 years (Based on 3 hrs/day) ". Use less than 2 hrs a day and have to replace bulb every few months. May 28, 2015
Rated 5.0 out of 5.0 by Perfect Application This 10-pack was exactly what I needed to complete the shop lighting project for my small barn. I was installing 5 overhead shop lights requiring 2 bulbs per fixture and decided that instead of using standard light level tubes I would like a brighter light as the interior has 288 square feet on the ground floor and a loft area of 190 square feet. These bulbs definitely did the job well and at a price point that was very reasonable. June 24, 2014
Rated 1.0 out of 5.0 by Short life After going through two boxes(10 ea) I've stopped using Phillips Fluorescent bulbs. They failed repeatedly after only a few months. After switching to Sylvania Fluorescent bulbs from Lowes I have not had one over a year. February 25, 2015
Rated 5.0 out of 5.0 by Great bulbs, but make sure you use proper T8 fixtures/ballast for these bulbs I really like these bulbs and have had excellent life from them, with great color. It's like I'm working in a new shop. I'm guessing the reviewers who have had very short lifespans with these bulbs are using them in old T12 fixtures with T12 magnetic ballast. If you do these bulbs will light, but you will significantly shorten the bulb and ballast life as well as chew up more energy. The bulbs may fit in old T12 fixtures, but don't use them like that. These bulbs are to only be used in the fixtures they were designed for, T8 fixtures with T8 ballast. January 7, 2014
Rated 2.0 out of 5.0 by Burns out frequently I have four tubes that cycle on and off several times a day. I have replaced all of them more than once in less than 12 months. June 10, 2015
Rated 1.0 out of 5.0 by Cheap Quality - not recommended Purchased 4 to replace lighting in office setting. One of plastic guards was broken upon arrival. ( did not discover until the others were installed.) The light guards are made of brittle plastic and there are no clips to fasten them to the fixture. Metal housings for lights were made of soft metal and bent easily. As a result two other light guards fell out after installation and shattered on the floor. I would have returned everything, but had already expended more than the fixtures cost in installation, and did not want to incur more expense to remove the fixtures pack them and send them back. We rigged the light guards from the old fixtures and made due. I would not recommend. April 3, 2015
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