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Description
Philips 21-Watt 34 in. Linear T5 Fluorescent Tube Light Bulb Bright White (3000K)The Philips 21 Watt Bright White Linear Fluorescent Light Bulb (F21T5 830) casts a crips, bright white light that can last up to 20,000 hours. You can use this bulb in almost any room inside of your home or business for general light needs or in the kitchen or bathroom. This bulb has a T5 shape with a bi pin base. Brightness: 2100 Lumens Estimated yearly energy cost: $2. 53 (Based on 3 hrs day, 11c kWh. cost depend on rates and use) Lasts up to 18. 2
The Philips 21-Watt Bright White Linear Fluorescent Light Bulb (F21T5/830) casts a crips, bright white light that can last up to 20,000-hours. You can use this bulb in almost any room inside of your home or business for general light needs or in the kitchen or bathroom. This bulb has a T5 shape with a bi-pin base.- Brightness: 2100 Lumens
- Estimated yearly energy cost: $2.53 (Based on 3 hrs/day, 11c/kWh. cost depend on rates and use)
- Lasts up to 18.2 years (based on 3 hours/day)
- Light appearance: 3000K (Bright White)
- Energy used: 21-Watt
- Lumens per watt: 100
- T5 bulb shape, miniature bi-pin base
- Contains mercury: yes (for more info on cleanup and safe disposal, visit: epa.gov/cfl)
- Ideal for residential use in kitchens and bathrooms as well as for commercial use in general, decorative and architectural lighting
- Contains mercury: yes (for more info on clean-up and safe disposal, visit: epa.gov/cfl)
- Based on availability, color temperature on packaging may vary between soft white and bright white, but all lamps will provide the same color temperature output of 3000 Kelvins.
Features
| Item Weight | 0.233 |
| Light Bulb Base Type | Bi-Pin |
| Indoor/Outdoor | Indoor |
| Returnable | 180-Day |
| Light Bulb Base Code | G5 |
| Color Rendering Index (CRI) | 85 |
| Actual Color Temperature (K) | 3000 |
| Average Life (hours) | 20000 |
| Color Temperature | Bright White |
| Bulb Type | General Purpose |
| Wattage (Watts) | 21 |
| Lumens (Brightness) | 2100 |
| Light Bulb Features | No additional features |
| Light Bulb Shape Code | T5 |
| Lighting Technology | Fluorescent |
| Number of Bulbs Included | 1 |
| Bulb Shape | Linear |
| Bulb Construction | Glass |
| Bulb Diameter (In.) | 0.625 |
| Product Length (in.) | 34 |
| Approximate Light Bulb Length | 3 ft. |
| Manufacturer Warranty | Yes, 18.3 years. Please see package 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 28 reviews
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Product Reviews
★★★★★ 5
Great item
Size: Combo Pack (26" & 20"), Style: Top Lock Narrow
Great item. Works & fits well on Tesla Model Y 2023
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2026
★★★★★ 5
Smooth and quiet wipe
Size: Combo Pack (26" & 20"), Style: Top Lock Narrow, Size: Combo Pack (26" & 20"), Style: Top Lock Narrow
Swapped these onto my car and they work great.
Installation was quick and easy, took just a couple minutes. The wipe is smooth and quiet with no streaks, even in heavier rain.
Feels like a solid upgrade compared to cheaper blades I’ve used before.
So far very satisfied.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 2, 2026
★★★★★ 4
Great fit...but 1" shorter
Size: Combo Pack (26" & 20"), Style: Top Lock Narrow
Fit and quality is great. However the shortblade needs to be 21". OEM is26" and 21". Bosch sets 26 and 20". I may have missed, but I didnt t see anyone mentioning this issue.
Other than that is perfect fit.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
★★★★★ 5
Terrific Bosch blades
Size: Combo Pack (26" & 20"), Style: Top Lock Narrow, Size: Combo Pack (26" & 20"), Style: Top Lock Narrow
These German made wiper blades do their job so well that my wife was impressed. Once you get the hang of it they are one minute to replace. Recommend placing a cloth under the blade to avoid any windshield scratches if the metal wiper assembly accidentally falls down on the glass. Nice to see the Bosch name on the wiper blades.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
★★★★★ 5
Best replacement option for 2025 Tesla Model Y Performance
Size: Combo Pack (26" & 20"), Style: Top Lock Narrow, Size: Combo Pack (26" & 20"), Style: Top Lock Narrow
Outstanding replacement option for 2025 Tesla Model Y Performance (Pre-Juniper), so much smoother than the OEM wipers. Very easy to replace. They seem very durable after testing on all wiper settings. Definitely keep the windshield clearer without streaks. Seem to also have more stability on mounting compared to OEM option. 15/10 replacement for the cost, can’t beat it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 13, 2026
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