SKU: 50100303961

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

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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.
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 50100303961

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Erica Ross
Massapequa, US
★★★★★ 1
The most worthless item I've purchased
Color: Black
I bought this can opener February 13th I think and I used it 2 weeks ago and is now broken won't open up anything so my review for this is the worst piece of crap can opener I've ever purchased so now I guess I got to go back to the manual hand one the Old faithful!!!! Do not I mean do not purchase it
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Reviewed in the United States on April 2, 2026
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Laura Barrere
Natrona Heights, US
★★★★★ 5
Great opener
Color: Blue
Had a battery operated can opener before and was always changing the batteries. Love the safety cut and this works great now that I can just charge it with my phone charger. Fits in my drawer so no counter space used
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Reviewed in the United States on March 27, 2026
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Nancy Broady
Pawtucket, US
★★★★★ 5
Can opener
Color: Black
Great can opener. Charge lasts a good while.
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Reviewed in the United States on May 23, 2026
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Linda L. <3
Los Angeles, US
★★★★★ 1
Leaves an EXTREMELY SHARP edge - cuts off entire lid from sides of can!
Color: Blue, Color: Blue
This can opener cut off the whole top of the tuna cans and left an insanely sharp, wobbly, very thin edge of the top of the can that nearly cut me because there was no heavy metal lip left behind to hold the structure of the top of the can! This is a very bad feature that is going to really hurt someone! I do NOT recommend this for anyone! Needs a product recall!
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Reviewed in the United States on May 21, 2026
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Mike
Port Orchard, US
★★★★★ 3
Lackluster
Color: Black, Color: Black
It does what it’s supposed to but only for a couple of cans before it dies. I’ve learned that I have to charge it before I put it away or it’s dead when I need it next and that’s after 2-3 cans. It’s small and fits in my drawer nice, does what it’s supposed to, just a little disappointed in how long it lasts
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Reviewed in the United States on May 21, 2026

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