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Description
Philips 4 ft. 40-Watt Equivalent T12 Supreme (4100K) U-Bent Linear Fluorescent Tube Light Bulb, Cool White (12-Pack)Philips T12 U Bent 4 ft. Fluorescent Tube, Cool White Philips 4 ft. T12 U bent fluorescent tubes deliver cool white 4100K light ideal for offices, garages, and basements. Built with a frosted glass finish and medium bi pin (G13) base, each 40W lamp provides up to 2,300 lumens and long 18,000 hour life. Key Features: Cool White 4100K Light: Crisp illumination for workspaces and general areas Long Life: Rated up to 18,000 hours to reduce replacements
Philips T12 U-Bent 4 ft. Fluorescent Tube, Cool White
Philips 4 ft. T12 U-bent fluorescent tubes deliver cool white 4100K light ideal for offices, garages, and basements. Built with a frosted glass finish and medium bi-pin (G13) base, each 40W lamp provides up to 2,300 lumens and long 18,000-hour life.
Key Features:
- Cool White 4100K Light: Crisp illumination for workspaces and general areas
- Long Life: Rated up to 18,000 hours to reduce replacements
- Reliable Output: 2,300 lumens; 57.5 lm/W efficiency
- U-Bent T12, G13 Base: Fits fixtures requiring medium bi-pin U-bent lamps
- Non-Dimmable Fluorescent: For indoor use; damp rated
Specifications Table:
| Specification | Details |
|---|---|
| Lighting Technology | Fluorescent |
| Bulb Shape Code | T12 U-Bent |
| Bulb Shape | Linear |
| Wattage | 40 W |
| Wattage Equivalence | 40 W |
| Color Temperature | 4100K Cool White |
| Color Rendering Index (CRI) | 85 |
| Lumens | 2300 lm |
| Lumens per watt | 57.5 |
| Base Type | Medium Bi-Pin |
| Base Code | G13 |
| Finish | Frosted |
| Material | Glass |
| Average Life | 18,000 hours |
| Rated Life (3 hrs/day) | Up to 16.4 years |
| Ballast Compatibility | Type A |
| Dimmable | No |
| Indoor/Outdoor | Indoor; Damp Rated |
| Voltage | 120 V |
| Max Operating Temperature | 113°F |
| Product Length | 48 in |
| Product Diameter | 1.5 in |
| Contains Mercury | Yes |
| Brightness Category | Cool White Supreme |
| Number of Bulbs Included | 1 (per pack on HD listing) |
| Estimated Yearly Energy Cost | $4.82 (3 hrs/day, 11¢/kWh) |
Frequently Asked Questions (FAQ):
Q: What ballast is required?
A: Works with Type A fluorescent ballasts compatible with T12 U-bent lamps.
Q: Is this lamp dimmable?
A: No, it is non-dimmable.
Q: What is the color temperature and CRI?
A: 4100K cool white with an 85 CRI.
Q: How long does it last?
A: Rated life is up to 18,000 hours (about 16.4 years at 3 hours/day).
Q: What base does it use?
A: Medium bi-pin G13 base.
Crisp, Architectural Glow for Everyday Spaces
This U-bent tube washes a room in a refined, cool white that sharpens lines and elevates utility into design. I love the sculptural U-shape—an industrial detail that feels intentional in open ceilings and garages. Pair it with matte finishes and galvanized steel for a tailored workshop or studio vibe. It’s the quiet luxury of perfect, functional light.
Brighten your workspace with long-lasting, cool white performance—add these Philips U-bent tubes to your cart today.
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
4.5 ★★★★★
Based on 1716 reviews
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Product Reviews
★★★★★ 3
Works well but takes up more space than expected
Size: 2 Panel 8FT W, Size: 2 Panel 8FT W
This room divider does the job for creating a little extra privacy and was easy enough to set up. The panels feel decent quality and the wider feet help keep it more stable than some cheaper screens I’ve tried. My only issue is that it takes up a bit more room than I expected, especially with the feet sticking out. It’s still portable and folds away nicely, but definitely measure your space first. Overall it works well for separating a room or blocking off an area temporarily. i wish it came in other colors
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Reviewed in the United States on May 26, 2026
★★★★★ 5
Nice divider, serves it's purpose well!
Size: 3 Panel 12FT W
This room divider worked out very well for what I needed. I wanted a simple way to create a little more privacy and separation in a larger room without doing anything permanent, and this divider was an easy solution. The panels provide good coverage, and the black color gives it a clean, modern appearance that blends in nicely with different décor styles.
Assembly was fairly straightforward, and once set up, the wider feet helped keep the divider stable on the floor. I was especially happy with how flexible the panels are to arrange. You can keep it mostly straight, angle it around furniture, or create a more enclosed private space depending on the layout you need.
The material allows light to filter through slightly while still offering a noticeable sense of privacy. I’ve used it for separating a workspace area, but it would also work well in bedrooms, apartments, dorms, studios, or shared living spaces. Another plus is that it can be folded and moved without too much effort when you want to change the setup.
Overall, this divider delivers a good balance of functionality, portability, and appearance. It’s a practical option for anyone needing temporary room separation without installing permanent walls or curtains.
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Reviewed in the United States on May 26, 2026
★★★★★ 5
Perfect for Adding Privacy to a Piano Studio
Size: 2 Panel 8FT W, Size: 2 Panel 8FT W
I Ordered the 2 Panel version which is way too big for my needs... that's on me. So keep in mind that the picture shows a fabric made for two panels only being used on one and hence it is not pulled tight; it would pull tight and not be so wrinkly if it was set up properly as two panels. The metal pools that make up the panels seem to be well made, stable, and of good quality. They were very easy to put together and they stand up tall with plenty of height. The appearance of it with the fabric on it isn't as elegant as it could be, but it still looks good enough. The material is plenty solid, not allowing light through it, and thereby making a solid barrier. I am using it to block the view out the studio door when a student is sitting at the piano to avoid distractions from the hallway. It will allow a student to enter the studio with our distracting the student who is at the piano.
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Reviewed in the United States on May 18, 2026
★★★★★ 5
Room Divider That Gives Instant “This Is a Separate Space Now” Energy
Size: 3 Panel 12FT W
The Siebwin 3 Panel Folding Privacy Screen is surprisingly effective at changing the feel of a room without requiring construction, commitment, or somebody yelling about load bearing walls. The 12 foot width gives a substantial amount of coverage, making it useful for creating privacy, dividing open areas, blocking visual clutter, or setting up temporary sections within larger rooms. This saved us a ton of time and money in our new studio and enabled us to create a kitchen and office in one room.
The wider feet make a huge difference because flimsy room dividers that collapse every time someone exhales too aggressively are deeply annoying. This one feels more stable and grounded once positioned. The folding design makes it easy to move around or adjust depending on the space, and it folds down relatively compactly when not in use. It is basically the introvert curtain wall of dreams.
The material has a clean, neutral look that blends well into different room styles without screaming “temporary office cubicle panic.” It works well for apartments, studios, shared spaces, dressing areas, or simply hiding the mountain of chaos you swear you are going to organize tomorrow. Practical, portable, and refreshingly easy to use without turning setup into a three hour emotional event.
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Reviewed in the United States on May 16, 2026
★★★★★ 4
It's 2 panels holding 1 big privacy screen. Can't use as 2 separate 4' panels, but works great.
Size: 2 Panel 8FT W
This 2 panel privacy screen works well. Assembly was very straight forward, with easily labeled tubes. My son and I had it together in about 10 minutes, which was probably 3 minutes of me telling him to quit playing around and hand me the parts. It feels very sturdy, not likely to fall over or anything. The material fits well, with the Velcro being very strong. Measurements are all very accurate, with all pieces attaching properly. We have a similar privacy screen at work that we have to try and stretch out because the top and bottom Velcro doesn't fit quite right... this model does not have any issues though. The material is thin and light weight, but solid black so that you can't see anything through or behind it. I definitely think it's a great deal for the money.
What I think would have given it 5 stars though, is if you had 2 totally separate 4' panels instead of 2 panels with one big screen. It really wouldn't cost any extra to make it so that the screen was in 2 pieces and you could use it as 2 separate panels instead of having to use it as one big panel. It says 2 panel folding privacy screens, but it's really one big one that folds in the middle.
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Reviewed in the United States on May 25, 2026