SKU: 50100303961

Philips 40-Watt 4 ft. ALTO Supreme Linear T12 Fluorescent Tube Light Bulb, Cool White (4100K) (10-Pack)

Sale price$51.86 Regular price$57.62
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Description

Philips 40-Watt 4 ft. ALTO Supreme Linear T12 Fluorescent Tube Light Bulb, Cool White (4100K) (10-Pack)Philips 40W T12 4 ft. Cool White Fluorescent Tubes (10 Pack) Brighten kitchens, garages, and offices with Philips ALTO Supreme 40W T12 fluorescent tubes. Delivering cool white 4100K light at 2600 lumens, these 4 ft. glass tubes feature medium bi pin (G13) bases and long 24,000 hour life for reliable, low mercury illumination. Key Features: Cool White Output: 4100K color temperature provides crisp, neutral light for task areas High Brightness: 2600

Philips 40W T12 4 ft. Cool White Fluorescent Tubes (10-Pack)

Brighten kitchens, garages, and offices with Philips ALTO Supreme 40W T12 fluorescent tubes. Delivering cool white 4100K light at 2600 lumens, these 4 ft. glass tubes feature medium bi-pin (G13) bases and long 24,000-hour life for reliable, low-mercury illumination.


Key Features:

  • Cool White Output: 4100K color temperature provides crisp, neutral light for task areas
  • High Brightness: 2600 lumens per bulb for clear visibility in residential or commercial spaces
  • Long Life: Up to 24,000 hours average life to reduce replacements and maintenance
  • Standard Fit: T12 linear tube with G13 medium bi-pin base for compatible fluorescent fixtures
  • Low-Mercury ALTO Technology: More environmentally conscious design than traditional fluorescent bulbs

Specifications Table:

Specification Details
Wattage 40 W
Length 48 in
Diameter 1.5 in
Bulb Shape Linear T12
Light Appearance (CCT) Cool White 4100K (listed as Cool White 4000K on spec table)
Brightness 2600 lumens
Average Life 24,000 hours (up to 21.9 years at 3 hrs/day)
Base Type Medium Bi-Pin
Base Code G13
Ballast Compatibility Type A
Dimmable No
Indoor/Outdoor Use Indoor
Rated Damp Rated
Material Glass
Finish Frosted
CRI 85
Max Operating Temperature 113°F
Number of Bulbs Included 10
Lighting Technology Fluorescent
Voltage 120 V
Wattage Equivalence 40 W
Contains Mercury Yes (ALTO low-mercury)

Frequently Asked Questions (FAQ):

Q: What fixtures are these compatible with?
A: They fit 4 ft. T12 fluorescent fixtures that use a G13 medium bi-pin base and Type A ballast.


Q: Are these bulbs dimmable?
A: No, they are non-dimmable.


Q: What is the light color?
A: Cool White, 4100K.


Q: How long do they last?
A: Average life is up to 24,000 hours (about 21.9 years at 3 hours/day).


Q: Can they be used outdoors?
A: They are intended for indoor use and are damp rated.


Crisp, Clean Light that Elevates Everyday Spaces

These slender tubes cast a refined cool white that sharpens lines and brightens work surfaces, instantly refreshing utility rooms and home studios. I love the subtle green-capped detail—an industrial nod that feels thoughtfully engineered. Line them in a classic 4-ft shop fixture above a workbench or in a tidy grid for a gallery-bright garage. Reliable and luminous, they’re the quiet essential of a well-edited, luxurious workspace.


Choose Philips ALTO Supreme T12 tubes today for bright, long-lasting cool white light with fewer replacements.

Warranty

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 50100303961

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Amazon Customer
Birmingham, US
★★★★★ 5
Very good quality for a reasonable price.
Size: 10, Color: Grey
Very good quality, very soft, very comfortable, look amazing, I’m very happy.
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Reviewed in the United States on May 23, 2026
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Mike L.
Massapequa, US
★★★★★ 4
Comfortable fit for slip-in fabric shoes
Size: 14, Color: Black/Black
My first experience with Marc Joseph. I typically purchase dress and casual work shoes from Florsheim and occasionally Rockport. I'm giving these four stars because the initial fit and feel appear solid. Depending on the shoe brand I wear a size 14 or 15. My feet are slightly wide but I don't alway need wide fit. These size 14 fit well with wide enough toe box. I've tried slip in shoes before and they just don't feel right. These somehow work and there is no heel slip. My only reservation is the high lip on the heel for slip-in and hope they dont catch pant hems. I gave 4 stars because I'll have to determine durability. Granted they are a light fabric shoe with a soft rubber tread. I'd like them to last for at least 6 months..and use them for business casual work wear during warm weather.
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Reviewed in the United States on May 19, 2026
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Chris
Belleville, US
★★★★★ 5
Stylish and comfortable.
Size: 8 Wide, Color: Black/Black
Shoes look great and fits well. Definitely recommend pocking another pair.
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Reviewed in the United States on May 10, 2026
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Mike
Charlottesville, US
★★★★★ 3
Narrow for an 11.5W
Size: 11.5 Wide, Color: Navy
Nice look and material but very narrow for a wide, had to return
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Reviewed in the United States on February 25, 2026
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David Kuck
New York, US
★★★★★ 5
NIce Shoes
Size: 10, Color: Black
Very nice quality and comfort
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Reviewed in the United States on June 1, 2026

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