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Description
Philips 40-Watt 4 ft. ALTO Supreme Linear T12 Fluorescent Tube Light Bulb, Cool White (4100K) (10-Pack)For the home or office, the Philips 40 Watt Cool White Linear Fluorescent Light Bulb (F40T12 CW SUPREME) is a great lighting source. It provides cool white light with an output of 2600 lumens. This bulb features ALTO technology for low mercury content. It's a more environmentally friendly lighting solution than traditional fluorescent bulbs. Brightness: 2600 Lumens Estimated yearly energy cost: $4. 82 (Based on 3 hrs. day, 11c kWh. cost depend on
For the home or office, the Philips 40-Watt Cool White Linear Fluorescent Light Bulb (F40T12/CW SUPREME) is a great lighting source. It provides cool white light with an output of 2600 lumens. This bulb features ALTO technology for low mercury content. It's a more environmentally friendly lighting solution than traditional fluorescent bulbs.- Brightness: 2600 Lumens
- Estimated yearly energy cost: $4.82 (Based on 3 hrs./day, 11c/kWh. cost depend on rates and use)
- Lasts up to 21.9 years (based on 3 hours/day)
- Light appearance: 4100K (Cool White)
- Energy used: 40-Watt
- Lumens per watt: 65
- T12 bulb shape, medium bi-pin base
- Contains mercury: yes (for more info on cleanup and safe disposal, visit: epa.gov/cfl)
- For indoor, commercial and residential use
- Ideal for indoor general lighting purposes for commercial and residential use
- Contains mercury: yes (for more info on clean-up and safe disposal, visit: epa.gov/cfl)
Features
| Item Weight | 7.132 |
| Light Bulb Base Type | Bi-Pin |
| Actual Color Temperature (K) | 4100 |
| Indoor/Outdoor | Indoor |
| Returnable | 180-Day |
| Color Rendering Index (CRI) | 85 |
| Average Life (hours) | 24000 |
| Wattage (Watts) | 40 |
| Bulb Type | General Purpose |
| Color Temperature | Cool White |
| Light Bulb Base Code | G13 |
| Lumens (Brightness) | 2600 |
| Light Bulb Features | No additional features |
| Number of Bulbs Included | 10 |
| Lighting Technology | Fluorescent |
| Light Bulb Shape Code | T12 |
| Bulb Shape | Linear |
| Bulb Construction | Glass |
| Product Length (in.) | 48 |
| Bulb Diameter (In.) | 1.5 |
| Approximate Light Bulb Length | 4 ft. |
| Manufacturer Warranty | Yes, 7 Years. See "More Information tab" for details. |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.6 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
soft and comfortable
Color: Beige, Size: Queen (Pack of 4)
Love these pillow cases. Perfect size, super soft and comfortable, good quality.
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Reviewed in the United States on May 4, 2026
★★★★★ 5
Best pillow cases yet
Color: Black, Size: Standard (Pack of 4)
So soft and washed no wrinkles and didn’t fade. Love these great price
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Reviewed in the United States on May 17, 2026
★★★★★ 5
Amazing. Ordering more
Color: White, Size: Standard (Pack of 4)
These are amazing and the price is crazy. I'm buying a few more sets. The color is white/white, which I love. They are so soft, not flimsy at all. A great value. Well made, the seams are well sown and the envelope casing even ups the look
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Reviewed in the United States on February 3, 2026
★★★★★ 5
Super soft and worth it
Color: Light Grey, Size: 2 Pack King（20"X 36"）
Honestly really happy with these pillowcases. They feel super soft and cool when you sleep on them. My hair has been way less messy in the morning too. The quality actually feels pretty nice and the king size fit perfectly. Makes my bed feel a lot more comfortable and expensive looking. Definitely glad I bought them.
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Reviewed in the United States on May 6, 2026
★★★★★ 5
SO WORTH THE PRICE
Color: Pink, Size: Queen（20"X 30"）
I bought these in two colors for my new apartment with some new pillows to go on them because I got a whole new set of sheets and comforter for my bed and I have to say these are some of the softest most comfortable cooling pillow cases ever! The silk is not super great quality but for the price it's totally worth it I've noticed that it takes care of my hair better I never used silk pillow cases before... But I don't think I'll ever go back. And the zip closed with a zipper so they stay on your pillow no problem without sliding around and you having to fix them all the time they're so easy to use and they look perfect. They look exactly like the pictures! Definitely worth the price... Oh, and there's no weird smell or anything these are definitely good quality!
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Reviewed in the United States on December 3, 2025