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USA
- USA
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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 6 - Jul 11
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Description
Philips 21-Watt 34 in. Linear T5 Fluorescent Tube Light Bulb Cool White (4100K) Alto (40-Pack)Philips linear fluorescent 21 Watt 34 in. T5 cool white light bulb (F21T5 841) is ideal for residential use in garages workshops, basements, as well as for commercial use in general, decorative and architectural lighting. It provides a cool white light. Brightness: 1950 lumens Estimated yearly energy cost: $2. 89 (based on 3 hrs day, 11c kWh. Costs depend on rates and use.) Life: 22. 8 years (based on 3 hrs day) Light appearance: 4100K (Cool White)
Philips linear fluorescent 21-Watt 34 in. T5 cool white light bulb (F21T5/841) is ideal for residential use in garages workshops, basements, as well as for commercial use in general, decorative and architectural lighting. It provides a cool white light.
- Brightness: 1950 lumens
- Estimated yearly energy cost: $2.89 (based on 3 hrs/day, 11c/kWh. Costs depend on rates and use.)
- Life: 22.8 years (based on 3 hrs/day)
- Light appearance: 4100K (Cool White)
- Energy used: 21 Watts
- Lumens per watt: 95.24
- Ideal for residential use in offices, as well as for commercial use in general, decorative and architectural lighting
- Great for general purpose lighting - creates a balanced and pleasant light
- Contains mercury: yes (for more on clean-up and safe disposal, visit: epa.gov/cfl)
- Contains mercury: yes (for more on ceal-up and save disposal visit: www.epa.gov)
Features
| Light Bulb Base Type | Bi-Pin |
| Actual Color Temperature (K) | 4100 |
| Indoor/Outdoor | Indoor |
| Returnable | 180-Day |
| Light Bulb Base Code | G5 |
| Color Rendering Index (CRI) | 85 |
| Average Life (hours) | 25000 |
| Lumens (Brightness) | 2000 |
| Bulb Type | General Purpose |
| Wattage (Watts) | 21 |
| Color Temperature | Cool White |
| Number of Bulbs Included | 40 |
| Light Bulb Features | No additional features |
| Light Bulb Shape Code | T5 |
| Lighting Technology | Fluorescent |
| Bulb Shape | Linear |
| Bulb Construction | Glass |
| Bulb Diameter (In.) | 0.625 |
| Product Length (in.) | 34 |
| Approximate Light Bulb Length | 3 ft. |
| Manufacturer Warranty | Yes. Please see the "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
4.4 ★★★★★
Based on 679 reviews
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Product Reviews
★★★★★ 5
Sturdy and long lasting.
These balls are a favorite of my Sheltie! She loves to chase after them and catch them in the air. My dog is not a chewer so I can't say how they hold up under aggressive circumstances! They do last a long time .
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 3, 2025
★★★★★ 5
Dog loves this ball
Our dog loves it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 15, 2026
★★★★★ 5
Best Balls Ever!!!
Size: Medium
These are the best balls ever! We have 2 very active ball loving dogs and these bounce very well and they actually hold up with active play and chewing. They still look brand new after daily use for months!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
★★★★★ 5
Finally a ball my power chewers cannot destroy
Size: Medium
I have two dogs, an American Bully and an American Pit Bull Terrier, and both of them love to chew. Most balls last a very short time around here before they are shredded or missing big chunks. This one has actually held up. They chase it, tug on it and sit and chew on it, and it is still in one piece with no pieces breaking off.
One of my favorite things is being able to put food inside. I add some kibble or small snacks, and they will happily sit and work on it for a long time. It keeps them busy, gives them something safe to chew, and they get a little reward while they play. When they are done, I just rinse it out and it is ready to go again.
If you have strong jawed dogs that usually destroy toys, this ball is worth trying. Mine really enjoy it and I feel better knowing they finally have a ball that can keep up with them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 22, 2025
★★★★★ 5
My dog LOVES this ball
Size: Medium, Size: Medium
Does your dog destroy tennis balls in seconds?
Yes? Then your dog NEEDS this ball!
It's squishy like a tennis ball, fits in ball launchers (even the cheap ones) and bounces when it hits the ground.
My dog has been literally playing with this ball all day and not a single mark on it!
The only bad thing is that it does not float.
Definitely worth the money!
Put it in your cart!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 8, 2026
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