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25 Watt, 36 Inch T8 Cool White Fluorescent Bulb

SKU: 368258 | Ordering Code: F25T8/TL841/ALTO (DISC - Use 281915)

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Product Details

Brand

Philips

Energy Used

A rating, expressed in watts, to indicate the rate at which a lamp consumes energy. Also known as wattage value.
 
Energy Used
25 Watts

Bulb Shape

The description of the general appearance of a lamp/bulb consists of a letter(s) followed by a number. The letter indicates the shape of the bulb and the number relates to the diameter of the bulb in eighths of an inch. For example, a common household bulb is the A-19. The bulb is "A" shape and the diameter would be nineteen 8ths of an inch, or 2 3/8".
 
Bulb Shape
T-8

Base

The end (or ends) of the lamp that fits into the socket.
 
Base
Medium Bipin

Diameter (in)

Light bulbs: a measurement of a bulb's width taken at the widest point of the bulb. Fixtures: the measurement across the widest point of a circular fixture.
 
Diameter (in)
1

Length (in)

Also referred to as "Maximum Overall Length" (MOL). For light bulbs, it measures the length of a light bulb, from the top of the bulb to the bottom of the base or pins and is typically expressed in inches. For light fixtures and ballasts, it applies to the total horizontal length of the item.
 
Length (in)
36

Average Rated Life (hr)

A measurement of the average length of time, between first use and the point when 50% of the lamps tested have stopped functioning, , using an operating cycle of 3 hours on, 20 minutes off.
 
Average Rated Life (hr)
20,000

Brightness (Lumens)

A rating of the inital light output of a bulb, rated after 100 hrs of operation. Lumens are a measure of how much light falls on one square foot of area, one foot away from the light source.
 
Brightness (Lumens)
2,050

Finish

Light bulbs: the coating applied to the bulb causing light to be emitted in certain colors or color temperatures (see Color Temperature). Popular finishes include clear, frosted, colors (amber, blue, green, red, etc.) as well as color temperature designations ranging from warm white (2700K) to natural daylight (6500K). Fixtures: the decorative finish of the item.
 
Finish
Cool White

CRI

Color Rendering Index is an international system used to rate a lamp's ability to render object colors. The higher the CRI (based upon a 0-100 scale) the richer and more accurately colors generally appear. CRI differences among lamps are not usually visible to the eye unless the difference is more than 3-5 points.
 
CRI
86

Color Temperature (Kelvin)

An expression of the hue of the light emitted, measured in degrees Kelvin. Usually expressed by a four digit number followed by (k), such as 2700k. Higher temperatures indicate whiter, "cooler" colors, while lower temperatures indicate yellower, "warmer" colors. Some common Kelvin temperature benchmarks are 2700k (warm white), 3500k (neutral white), 4100k (cool white), 5000k (bright white), and 6500k (daylight).
 
Color Temperature (Kelvin)
4100K

GE

A General Electric brand-specific product number for an equivalent item and is provided for the purpose of cross-referencing.
 
GE
22651 - F25T8/SPX41

Osram Sylvania

An Osram Sylvania brand-specific product number for an equivalent item and is provided for the purpose of cross-referencing.
 
Osram Sylvania
21888 - F025/841

Bulb Technology

The technology implemented by the bulb, e.g. incandescent, halogen, LED
 
Bulb Technology
Fluorescent
Description
 
Reviews
 
Q & A

Philips brand energy saving T8 fluorescent lamp.  ALTO technology uses less mercury for an environmentally safer lamp.

  • Cool white color is popular with many businesses

  • Better color rendering makes colors appear brighter, objects appear closer to their true color

  • T8 technology lasts longer than traditional T12, with better lumen maintenance

REVIEW SNAPSHOT®

by PowerReviews
Philips Lighting Company25 Watt, 36 Inch T8 Cool White Fluorescent Bulb
 
4.5

(based on 2 reviews)

Reviewed by 2 customers

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5.0

Very satisfied

By Alan

From Marshall, TX

About Me Value Oriented

Verified Buyer

Pros

  • Bright
  • Long Life
  • Reduces Energy Costs
  • Runs Cool

Cons

    Best Uses

    • General Lighting

    Comments about Philips Lighting Company 25 Watt, 36 Inch T8 Cool White Fluorescent Bulb:

    Used for "effect" lighting around the perimeter of our dining room.

    • Primary use:
    • Personal
     
    4.0

    Wow, I can see like never before!

    By RufousSidedTowhee

    From Tennessee

    About Me Quality Oriented

    Verified Buyer

    Pros

    • Bright
    • Reduces Energy Costs
    • Runs Cool

    Cons

      Best Uses

      • Kitchen

      Comments about Philips Lighting Company 25 Watt, 36 Inch T8 Cool White Fluorescent Bulb:

      The light emitted from this 4100K bulb is fantastic. Just this one bulb brings out colors in my kitchen tile I had never seen before. The rest of the house, which has various other types of bulbs, now looks cave-like compared to my kitchen. As the bulb is new I will have to wait and see on longevity. I did go ahead and purchase several because I was not able to find the bulb locally.

      • Primary use:
      • Personal

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