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USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 12 - Jul 17
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Description
46 in. 28-Watt Linear T5 Fluorescent Tube Light Bulb, Cool White 4100K (40-Pack)Sunlite fluorescent lamps are very popular for use in office and other lighting applications. The characteristics of fluorescent lamps vary type of lamp. Fluorescents lamps are used so widely due to their low operating costs and because they are efficient, last for years and are high quality and rapid starting. Fluorescent lamps can cost significantly less to operate over their lifetime than incandescent lamps. Life ratings for fluorescent lamps range
Sunlite fluorescent lamps are very popular for use in office and other lighting applications. The characteristics of fluorescent lamps vary type of lamp. Fluorescents lamps are used so widely due to their low operating costs and because they are efficient, last for years and are high quality and rapid starting. Fluorescent lamps can cost significantly less to operate over their lifetime than incandescent lamps. Life ratings for fluorescent lamps range from 6,000-hours to 36,000-hours based on the industry standard of 3 burning-hours per start. Also, rapid start and instant start lamps typically start within 1-second of being turned on. The High Performance and High Output versions also give you and even better efficacy and energy efficiency. Look for a higher CRI for improved light quality. Sunlite F28T5/841 4100K Color Temperature T5 Hight Performance Straight Tube Fluorescent 28-Watt lamp features a Mini Bi Pin base, provides a light output of 2500 Lumens at a Color Rendering Index (CRI) of 82 and can last an average of 20,000-hours.- California residents
- 28-Watt T5 fluorescent straight tube bulbs
- 4100K cool white color temperature
- 20,000-hour average lifetime
- Mini Bi-pin G5 base
- Item dimensions 0.63 in. W x 0.63 in. H x 45.80 in. D
- ROHS compliant and eco friendly design
Features
| Item Weight | 10.2 |
| Light Bulb Base Type | Bi-Pin |
| Actual Color Temperature (K) | 4100 |
| Indoor/Outdoor | Indoor |
| Returnable | 180-Day |
| Light Bulb Base Code | G5 |
| Average Life (hours) | 25000 |
| Color Temperature | Cool White |
| Light Bulb Features | Energy Saving,Environmentally-Friendly Design |
| Wattage (Watts) | 28 |
| Number of Bulbs Included | 40 |
| Bulb Type | Specialty |
| Light Bulb Shape Code | T5 |
| Lumens (Brightness) | 2500 |
| Color Rendering Index (CRI) | 82 |
| Lighting Technology | Fluorescent |
| Bulb Shape | Linear |
| Bulb Construction | Glass |
| Approximate Light Bulb Length | 4 ft. |
| Product Length (in.) | 46 |
| Bulb Diameter (In.) | .625 |
| Manufacturer Warranty | Manufacturer warranty |
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
4.8 ★★★★★
Based on 778 reviews
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Product Reviews
★★★★★ 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
★★★★★ 5
Best socks ever
Size: Large, Color: (100) White / White / Mod Gray
Best athletic socks I’ve bought. I usually buy UA socks anyway and these are the best. Super soft and comfy. Fit snug and my feet don’t slide around in them.
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Reviewed in the United States on February 9, 2026
★★★★★ 5
Much much better than the standard sock
Size: X-Large, Color: (001) Black / Black / Castlerock
These socks are superb. Lots of padding in the right places, snug where it should be snug & loose where you don't want it to bind. They are marked with an 'L' for left foot, & 'R' for the right foot (it makes a difference in the fit being perfect. They stay up on your heel & don't slide down
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Reviewed in the United States on April 20, 2026
★★★★★ 4
4 lefts vs 2 rights
Size: Medium, Color: (001) Black / Black / Castlerock, Size: Medium, Color: (001) Black / Black / Castlerock
I ordered a set of three. I ended up with four left socks and two right socks lol. Granted it doesn’t matter unless you’re OCD. JEEZ.
Love the socks but not the attention to detail the sock company did on matching left/right marked socks.
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Reviewed in the United States on May 28, 2026
★★★★★ 5
My favorite socks
Size: Medium, Color: (001) Black / Black / Castlerock
I love love, love the left and right socks one has an L one has an R and they fit so well and they’re so comfy for running jogging or walking. They are my favorite socks.
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Reviewed in the United States on January 8, 2026