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.

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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

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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)

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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.

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

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

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

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

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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.

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

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