Philips Lighting F25T8 Linear ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$58.10
$7.35
Philips Lighting 281907 F25T8/TL835 ALTO

Philips Lighting F25T8 Linear Fluorescent Tube 25W 3500K ALTO Energy Saving

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Model: 281907
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$7.35
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Philips Lighting F25T8 Linear Fluorescent Tube 25W 3500K ALTO Energy Saving

Professional ALTO Energy Saving Fluorescent Technology

Philips Lighting F25T8 Linear Fluorescent Tube delivers reliable 25W performance with 3500K color temperature and ALTO energy saving technology. This T8 fluorescent tube features medium bi-pin base with green base design, providing 2150 initial lumens and 2045 design mean lumens for consistent professional lighting applications.

Professional Features & Benefits

  • 25W Power Rating: Efficient energy consumption while maintaining optimal light output for professional environments.
  • 3500K Color Temperature: Neutral white light ideal for office, retail, and commercial applications requiring balanced illumination.
  • ALTO Energy Saving Technology: Advanced fluorescent design reduces energy consumption while maintaining performance standards.
  • 2150 Initial Lumens: High light output ensures adequate illumination for demanding commercial and industrial applications.
  • 85 Ra8 Color Rendering Index: Excellent color accuracy for applications requiring true color representation.
  • 36-inch Length: Standard T8 tube size compatible with most commercial fluorescent fixtures.
  • 30000-36000 Hour Rated Life: Extended operational life reduces maintenance costs and replacement frequency.

Technical Specifications

  • Bar Code On Case: 5.00467E+13
  • Bar Code On Pack: 46677281908
  • Base: Medium Bi-Pin [Medium Bi-Pin Fluorescent]
  • Base Information: Green Base
  • Bulb: T8
  • Color Code: TL835 [CCT of 3500K]
  • Color Designation: TL835
  • Color Rendering Index: 85 Ra8
  • Cri: 3500 K
  • Design Mean Lumens: 2045 Lm
  • Energy Saving: Energy Saving
  • Eop Net Weight Pp: 0.001 kg
  • Eop Pck Cfg: 30
  • Full Product Name: F25T8/TL835 ALTO
  • Initial Lumen: 2150 Lm
  • Logistics Code S : 9.27851E+11
  • Mercury Hg Content: 1.7 mg
  • Nominal Length Inch : 36
  • Picogram Per Lumen Hour: 35 p/LuHr
  • Pieces Per Sku: 1
  • Product Number: 281907
  • Product Watts: 25 W
  • Rated Avg Life 12 Hr Inst St : 30000 hr
  • Rated Avg Life 12 Hr Prog St : 36000 hr
  • Rated Avg Life 3 Hr Inst St : 24000 hr
  • Rated Avg Life 3 Hr Prog St : 30000 hr
  • Short Product Name: F25T8/TL835/ALTO 30PK
  • Skus Case: 30

Professional Applications

  • Commercial Office Buildings
  • Retail Establishments
  • Educational Facilities
  • Healthcare Environments
  • Industrial Workspaces
  • Warehouse Lighting
  • Professional Service Areas

Why Choose Philips Lighting Quality?

Philips Lighting delivers proven reliability with ALTO energy saving technology and extended 30000-36000 hour rated life. The medium bi-pin base with green base design ensures compatibility with standard T8 fixtures while maintaining professional performance standards for demanding commercial applications.

Manufacturer Resources

Spec Sheet

Product Specs

Bar Code On Case:
5.00467E+13
Bar Code On Pack:
46677281908
Base:
Medium Bi-Pin [Medium Bi-Pin Fluorescent]
Base Information:
Green Base
Bulb Type:
T8
Color Code:
TL835 [CCT of 3500K]
Color Designation:
TL835
Color Rendering Index:
85 Ra8
CRI:
3500 K
Design Mean Lumens:
2045 Lm
Energy Saving:
Energy Saving
Eop Net Weight Pp:
0.001 kg
Eop Pck Cfg:
30
Full Product Name:
F25T8/TL835 ALTO
Initial Lumen:
2150 Lm
Logistics Code S:
9.27851E+11
Mercury Hg Content:
1.7 mg
Nominal Length Inch:
36
Picogram Per Lumen Hour:
35 p/LuHr
Pieces Per Sku:
1
Product Number:
281907
Rated Avg Life 12 Hr Inst St:
30000 hr
Rated Avg Life 12 Hr Prog St:
36000 hr
Rated Avg Life 3 Hr Inst St:
24000 hr
Rated Avg Life 3 Hr Prog St:
30000 hr
Short Product Name:
F25T8/TL835/ALTO 30PK
Skus Case:
30
Product Wattage:
25 W
Product Type:
Fluorescent Tube
Department:
Electrical
Product Subgroup:
Lamps & Bulbs
Product Group:
Lighting
Product Height:
1 in
Product Width:
1 in
Country of Origin:
United States
Product Weight:
0.265 lb
Product Color:
TL835
Product Length:
35.75 in

Philips Lighting 281907 – Frequently Asked Questions

1) Will a Philips F25T8 25W tube fit a 3-foot fluorescent fixture that currently has a 30W T8 lamp?
Yes. The F25T8/TL835 ALTO is a 36-inch nominal T8 with a medium bi-pin base, the same physical lamp as a standard 3-foot F30T8. It drops into the same lampholders. What matters is the ballast: at 25W this is the reduced-wattage energy saving version, so it has to run on a ballast that will drive it. Confirm your ballast is listed for a 25W 3-foot T8 before you swap a fleet of fixtures.
2) Is 3500K the right color temperature to match the tubes already in my office?
3500K is neutral white, between the warmer 3000K and the cooler 4100K that many offices run. The Philips code to match is TL835: the 8 means 80-plus CRI and the 35 means 3500K. This lamp measures 85 Ra8. If your existing tubes are marked 841 or 741 they are 4100K and will look visibly cooler beside this one, so change out a whole room rather than mixing.
3) How long will these F25T8 tubes last before we have to relamp?
Rated life depends on how the lamp is started and how long it burns per start. On a programmed start ballast at 12 hours per start it is rated 36,000 hours; instant start at 12 hours per start drops it to 30,000. At 3 hours per start, programmed start gives 30,000 hours and instant start 24,000. Frequent switching, such as occupancy sensor control in restrooms or stairwells, is why programmed start ballasts pay back on relamp intervals.
4) What part number do I give my supplier for the Philips 3-foot 25W 3500K tube?
Order Philips product number 281907, full designation F25T8/TL835 ALTO. The UPC on the individual pack is 046677281908. Note the TL835 in the designation: a 281907 will not cross with an 830 or 841 lamp, those are different color temperatures on the same glass.
5) Are spent F25T8 ALTO tubes still handled as universal waste?
They contain mercury, 1.7 mg per lamp, so yes, they are still fluorescent lamps and still go through your lamp recycling stream. ALTO simply means the mercury dose is low, at 35 picograms per lumen hour. It does not make the lamp exempt from the disposal handling your facility already has in place for fluorescents.
6) Do Philips F25T8 tubes come as singles or by the case?
The standard Philips pack configuration for the 281907 is 30 lamps to a case, which is how the short product name reads: F25T8/TL835/ALTO 30PK. Order in case multiples when you are relamping a floor so the lamps come from the same production run and the color holds consistent across the space.
7) Is the F25T8 a good choice for healthcare or retail where color accuracy matters?
At 85 Ra8 CRI, this lamp renders color well enough for retail merchandise, exam and patient areas, and classrooms. Paired with the 3500K neutral white output it reads clean without the yellow cast of 3000K or the blue edge of 4100K. Applications the lamp is built for include offices, retail, schools, healthcare, industrial workspaces and warehouses.
How fast can I get the Philips Lighting 281907 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Philips Lighting 281907 come with a warranty?
Absolutely. The Philips Lighting 281907 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Philips Lighting 281907?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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