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44 Watt, 48 Inch T8 Cool White High Output Fluorescent Bulb

SKU: 236794 | Ordering Code: F48T8/TL841/HO/ALTO

In Stock
Price per Bulb
Each $10.99
 x  Case (25 per case)
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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
44 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
Recessed Double Contact

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)
48

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)
18,000

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)
4,000

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
85

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

Bulb Technology

The technology implemented by the bulb, e.g. incandescent, halogen, LED
 
Bulb Technology
Fluorescent

Bulb Finish

The surface finish of a bulb, which may affect the quality of the light emitted.
 
Bulb Finish
Opaque

Bulb Color

The color of the light produced by a bulb
 
Bulb Color
Cool White
Description
 
Reviews
 
Q & A

Philips 48" T8 high output cool white lamp.  Recessed double contact base.  ALTO technology uses less mercury for an environmentally safer lamp.

  • 4100K Cool White color is very popular with many businesses

  • Better color rendering means objects appear closer to their true color than with traditional fluorescent

  • Performance - well known brand name product at competitive price

Full case (25) only, priced per bulb

Do you have questions about this product?

get answers from real customers and in-house experts with AnswerBox.

3 Questions | 3 Answers
Displaying questions 1-3
  • Q:

    Is this lamp cold temp rated
    Asked on 4/23/2014 by Carol from Southport, NC

    1 answer

    • Bulbs.com LS1 Certified Lighting Specialist

      A:

      Yes, this is a high output lamp rated for cold or outdoor use.

      Answered on 4/23/2014 by Anonymous
  • Q:

    Do u have 6000k available?
    Asked on 4/6/2013 by Bud from Meadville PA

    1 answer

    • Bulbs.com LS1 Certified Lighting Specialist

      A:

      We do not carry this High Output, 44 watt T8 in 6000K.

      Answered on 4/9/2013 by Anonymous
  • Q:

    What ballast do I use for this lamp?
    Asked on 8/2/2011 by Anonymous from Chillicothe, Illinois

    1 answer

Displaying questions 1-3

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