SKU: 42694024946

Philips 40-Watt 4 ft. T12 ALTO Linear Fluorescent Tube Light Bulb, Natural Daylight 5000K (30-Pack)

Sale price$53.44 Regular price$59.38
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Description

Philips 40-Watt 4 ft. T12 ALTO Linear Fluorescent Tube Light Bulb, Natural Daylight 5000K (30-Pack)40W 4 ft. T12 ALTO Daylight Fluorescent Tubes (30 Pack) These Philips 4 ft. T12 ALTO fluorescent tubes deliver crisp 5000K natural daylight for bright, energizing illumination. Ideal for residential and commercial fixtures, each 40W lamp features long life and reliable performance with a medium bipin G13 base. Key Features: Natural Daylight 5000K: Bright, energizing light ideal for task areas and workspaces ALTO Technology: Reduced mercury content for

40W 4 ft. T12 ALTO Daylight Fluorescent Tubes (30-Pack)

These Philips 4 ft. T12 ALTO fluorescent tubes deliver crisp 5000K natural daylight for bright, energizing illumination. Ideal for residential and commercial fixtures, each 40W lamp features long life and reliable performance with a medium bi‑pin G13 base.


Key Features:

  • Natural Daylight 5000K: Bright, energizing light ideal for task areas and workspaces
  • ALTO Technology: Reduced mercury content for a more environmentally conscious choice
  • Long Life: Rated up to 24,000 hours to minimize replacements
  • Standard Fit: T12, 48 in. tubes with medium bi‑pin (G13) base for easy compatibility
  • Durable Build: Frosted glass construction for even, comfortable light distribution

Specifications Table:

Specification Details
Pack Size 30 bulbs
Wattage 40 W
Length 48 in
Diameter 1.5 in (T12)
Base Type Medium Bi‑Pin
Base Code G13
Lighting Technology Fluorescent
Color Temperature 5000K Daylight
Bulb Finish Frosted
Bulb Color White
Material Glass
Brightness (Lumens) 2500 lm
CRI 85
Average Life 24,000 hours
Dimmable No
Ballast Compatibility Type A
Indoor/Outdoor Indoor
Rated Damp Rated
Max Operating Temperature 113°F
Voltage 120 V
Wattage Equivalence 40 W
Contains Mercury Yes (ALTO reduced‑mercury)

Frequently Asked Questions (FAQ):

Q: Are these bulbs dimmable?
A: No. These T12 fluorescent lamps are non‑dimmable.


Q: What type of base do they use?
A: G13 medium bi‑pin base, standard for 4 ft. T12 fixtures.


Q: What fixtures are these compatible with?
A: They are designed for T12 fluorescent fixtures using compatible Type A ballasts.


Q: What is the color temperature and brightness?
A: 5000K daylight appearance with approximately 2500 lumens per bulb.


Q: Are these suitable for damp locations?
A: They are damp‑rated for indoor use.


Crisp Daylight That Elevates Every Workspace

I love the invigorating clarity these 5000K tubes bring to a room—clean, bright, and endlessly functional. Their frosted glass softens the light just enough, creating a polished, uniform wash across countertops and studio benches. Line them in a sleek shop light or a minimalist ceiling troffer to transform garages and craft rooms into luminous ateliers. This is the quietly luxe utility that makes everyday living feel refined and effortless.


Brighten your space with crisp, reliable daylight—add this 30‑pack to your cart and upgrade every fixture at once.

Warranty

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • 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: 42694024946

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Kendra
Lowell, US
★★★★★ 4
Good quality
Size: Large, Color: (035) Steel / White / Black
These are a bit thicker then a compression sock and they come up higher on the ankle than a no-show sock normally does. They are very comfortable and soft.
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Reviewed in the United States on February 10, 2026
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K
Lexington, US
★★★★★ 5
Good quality socks
Size: X-Large, Color: (001) Black / Black / White
Great value and great product and comfort. Not thin and wears well not like thin socks in a size that fits
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Reviewed in the United States on December 4, 2025
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Cookie
Whiting, US
★★★★★ 5
Socks
Size: Medium, Color: (001) Black / Black / White
Great price, perfect fit.
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Reviewed in the United States on January 23, 2026
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Aaron Braumann
Natrona Heights, US
★★★★★ 5
Finally found a good set again.
Size: X-Large, Color: (001) Black / Black / Castlerock
I’m picky on socks, any they always have to be Under Amour. These are top notch, super padded but also temperature regulating, feet don’t sweat when wearing, and I can tell in the winter they’ll stay the right temperature. They also fit great. Purchasing more.
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Reviewed in the United States on May 6, 2026
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Ash
West Palm Beach, US
★★★★★ 5
Best Quality Socks & Great Thickness Plus Comfort
Size: Medium, Color: (001) Black / Black / Castlerock
I love these. They do not slip away from foot. The value for a good pack of socks was worth it. Has a good thick quality. They look clean and nice. Their stretch is good to get on and then molds to foot. Have noticed these socks have changed two times since buying. First they were slightly lighter color gray- then a darker gray but both had good quality and thickness. I am sure these are very durable but unfortunately I can not speak fully to this as the horrible steel toe shoes I have to wear rip everything apart. But if I had good shoes and everyday use of these I know they would stay good for so much longer than 6months.
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Reviewed in the United States on July 7, 2025

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