Philips 4 ft. T12 40-Watt Cool White Supreme (4100K) ALTO Linear Fluorescent Light Bulb (30-Pack)-422709 - The Home Depot


Model # 422709

Internet # 203466574

Store SKU # 151012

4 ft. T12 40-Watt Cool White Supreme (4100K) ALTO Linear Fluorescent Light Bulb (30-Pack)

Philips 4 ft. T12 40-Watt Cool White Supreme (4100K) ALTO Linear Fluorescent Light Bulb (30-Pack)

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

$59.00 / case


Model # 422709

Internet # 203466574

Store SKU # 151012

Designed to help meet various general-purpose lighting needs around your home and office, the Philips 40-Watt 4 ft. T12 Linear Fluorescent Light Bulbs offer a cool white color with an output of 2600 lumens. These bulbs feature ALTO technology for low mercury content.

  • Brightness: 2600 lumens
  • Estimated yearly energy cost: 4.82 (based on 3 hrs/day, 11c/kwh. costs depend on rates and use)
  • Life: 24000 hours
  • Light Appearance: 4100k (cool white)
  • Energy Used: 40 Watts
  • Lumens per Watt: 65
  • For indoor, commercial and residential use
  • Ideal for general purpose applications including home and office
  • T12, 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  48  Assembled Depth (in.)  49.38 in 
Assembled Height (in.)  8.498 in  Assembled Width (in.)  10.38 in 
Bulb Diameter (In.)  1.5 
Average Life (hours)  24000  Bulb Shape  Linear 
Bulb Type  Household  Commercial / Residential  Commercial / Residential 
Hazardous Code  Non-regulated Solid  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  T12 
Light Color  Cool White  Light Output (lumens)  2600 
Lighting Technology  Fluorescent  Number in Package  30.0 
Returnable  90-Day  Watt Equivalence 
Wattage (watts)  40 
Warranty / Certifications
ENERGY STAR Certified  No  Manufacturer Warranty  Yes, 7 Years. See "More Information tab" for details. 


Rated 3.4 out of 5 by 7 reviewers.
Rated 1.0 out of 5.0 by Bad service from Home Depot The bulbs look like they will be fine but we ordered a 30 pack and they were busted up when they got here. You contact Home Depot they tell you tough luck, contact Phillips the manufacturer and they will send a label to pick up the broken bulbs and then when they get them back they will replace them in about a month. This is really bad service. November 13, 2014
Rated 1.0 out of 5.0 by Do not last I always purchase tubes by the case as I like to have the same color bulbs in my fixtures. I have several rooms in my house that have more than one 4 ft fixture in them. I loved the light that these bulbs put out, but now that I have had them just a little over a year they are starting to go out. I started replacing them when bulbs left in case and the bulbs when placed in fixtures do not want to come on when switch is first turned on. If you turn switch off and on several times they will light up. Not lasting a year in fixture I can get over as I use lights a lot, but having bulbs never used not work is poor quality. I can place different color bulbs warm white from different brand that I have had for years setting in garage and they come on when switch is turned on, so I know it is not fixtures. I want dependable product not quality like this. I guess you get what you pay for! September 22, 2014
Rated 5.0 out of 5.0 by Philips 4' Tubes are great! Philips lighting bulbs are a great value and they perform as stated. I would recommend the Philips brand of lighting to all. July 1, 2014
Rated 5.0 out of 5.0 by good value 30 fluorescent tubes received totally undamaged and within a reasonable time. It also was a very good value. I shopped around and many companies won't ship fluorescent tubes for fear of damage through shipping. these lamps were VERY well packaged to prevent damage. March 25, 2014
Rated 4.0 out of 5.0 by Basic purchase, nothing special Really wasn't anything to write home about. The local store had the five 30 packs I needed. Three bulbs were not functional. Not the end of the world, but I'm not going to return 3 bulbs to the store to get less than $6 credit (time vs. money back not worth the trouble). The other 147 work great though. You never know what difference it makes until you replace the bulbs. Much bigger than I imagined. September 24, 2013
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