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34 Watt, 48 Inch T12 Cool White Fluorescent Bulb

SKU: 244707 | Ordering Code: F34/CW/RS/EW/ALTO (DISCONTINUED- Use 423889)

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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
34 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-12

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)
1.5

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)
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)
2,650

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
62

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
13803 - F40CW/RS/WM

Osram Sylvania

An Osram Sylvania brand-specific product number for an equivalent item and is provided for the purpose of cross-referencing.
 
Osram Sylvania
24594 - F40CW/SS/ECO

Bulb Technology

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

Philips popular 34 Watt T12 fluorescent lamp.  ALTO technology uses less mercury for an environmentally safer lamp.

  • Cool white color is very popular for most businesses

  • More lamp per dollar - provides as much or more light than most other T12 fluorescents, and at a reasonable price. Perfect for lighting non-customer work areas

Full case (30) only, priced per bulb

REVIEW SNAPSHOT®

by PowerReviews
Philips Lighting Company34 Watt, 48 Inch T12 Cool White Fluorescent Bulb
 
5.0

(based on 7 reviews)

100%

of respondents would recommend this to a friend.

Pros

  • Reduces energy costs (5)
  • Bright (4)
  • Long life (4)
  • Runs cool (4)

Cons

    Best Uses

    • General lighting (6)
      • Reviewer Profile:
      • Budget shopper (7), Quality oriented (3)
      • Primary use:
      • Business (5)

    Reviewed by 7 customers

    Sort by

    Displaying reviews 1-7

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    5.0

    I will buy again

    By Darren

    From Downers Grove IL

    About Me Value Oriented

    See all my reviews

    Verified Buyer

    Pros

    • Bright

    Cons

      Best Uses

      • General Lighting

      Comments about Philips Lighting Company 34 Watt, 48 Inch T12 Cool White Fluorescent Bulb:

      Used in an old school

      • Primary use:
      • Business

      (1 of 1 customers found this review helpful)

       
      5.0

      Good Bulbs

      By Maintenance Guy

      From Warner Robins, GA

      About Me Picky, Quality Oriented, Value Oriented

      See all my reviews

      Verified Buyer

      Pros

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

      Cons

      • None

      Best Uses

      • General Lighting
      • Kitchen

      Comments about Philips Lighting Company 34 Watt, 48 Inch T12 Cool White Fluorescent Bulb:

      The visible light is just as much as the 40 watt T12. We are swapping all our 40w bulbs out for the 34w. Did not change the brightness of the room and we could potentially save ALOT in energy costs. But they work just as good as the expensive Brands and higher CRI ratings. Can't tell a difference with my eyes.

      • Primary use:
      • Business

      (1 of 1 customers found this review helpful)

       
      5.0

      Great Lights, [...]

      By BIG OH

      From Roselle NJ

      About Me Quality Oriented, Value Oriented

      Verified Buyer

      Pros

      • Long Life
      • Reduces Energy Costs
      • Runs Cool

      Cons

      • Weak Light

      Best Uses

      • General Lighting

      Comments about Philips Lighting Company 34 Watt, 48 Inch T12 Cool White Fluorescent Bulb:

      I use it for the lighting in my basement. The power used or lack of it is great. The lighting is not that bright, but that's not really a bad thing.

      • Primary use:
      • Personal

      (0 of 1 customers found this review helpful)

       
      5.0

      [...]

      By Bobzenon Base

      From Euclid, ohio

      About Me Value Oriented

      See all my reviews

      Verified Buyer

      Pros

      • Long Life
      • Reduces Energy Costs
      • Runs Cool

      Cons

        Best Uses

        • General Lighting

        Comments about Philips Lighting Company 34 Watt, 48 Inch T12 Cool White Fluorescent Bulb:

        Ease of Use.

        • Primary use:
        • Business

        (1 of 1 customers found this review helpful)

         
        5.0

        I would buy this product

        By Lucille

        From Amityville, NY

        About Me Quality Oriented, Value Oriented

        Verified Buyer

        Pros

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

        Cons

        • Do not have any cons

        Best Uses

        • General Lighting

        Comments about Philips Lighting Company 34 Watt, 48 Inch T12 Cool White Fluorescent Bulb:

        These bulbs are used in the office and they last for many years.

        • Primary use:
        • Business
         
        5.0

        saves on the wattage

        By HHMGT

        From Skokie IL

        About Me Value Oriented

        Verified Buyer

        Pros

        • Bright
        • Reduces Energy Costs

        Cons

          Best Uses

          • General Lighting

          Comments about Philips Lighting Company 34 Watt, 48 Inch T12 Cool White Fluorescent Bulb:

          [...]

          • Primary use:
          • Business

          (1 of 1 customers found this review helpful)

           
          5.0

          [...]

          By Mike Cabinetmaker

          From Nekoosa WI

          About Me Value Oriented

          Verified Buyer

          Pros

            Cons

              Best Uses

                Comments about Philips Lighting Company 34 Watt, 48 Inch T12 Cool White Fluorescent Bulb:

                I`m sure when I need to replace bulbs they will be fine..

                Displaying reviews 1-7

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                Do you have questions about this product?

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

                6 Questions | 6 Answers
                Displaying questions 1-6
                • Q:

                  does this bulb come in sp30 color?
                  Asked on 7/10/2012 by sam

                  1 answer

                • Q:

                  Is this bulb envirnmentaly friendly? Can you dispose of in the trash?
                  Asked on 7/2/2012 by mudcatking

                  1 answer

                  • CUSTOMER CARE

                    A:

                    This product does contain mercury. While the mercury content is less than most fluorescent tubes, the bulb should be disposed of according to your state's guidelines for hazardous materials. Please see the following link for more information. http://www.bulbs.com/learning/mercurylegislation.aspx

                    Answered on 7/2/2012 by Product Support from Bulbs.com
                • Q:

                  On the box, it says you need to use a ballast made for 34 watts, as opposed to the standard 40 watt tubes that usually go in the fixture. How important is that? I'm replacing a bunch of 40-watt tubes plugged into what I assume are standard ballasts.
                  Asked on 8/15/2011 by Anonymous

                  1 answer

                  • CUSTOMER CARE

                    A:

                    Depending on how old the ballast is or the last time it was replaced, it is possible that the ballast will be able to operate the 34-watt bulb. We would recommend checking the ballast to see what types of lamps can be used with it. These should appear on the ballast label. If it does not list the 34-watt bulb, then the ballast should be replaced.

                    Answered on 8/16/2011 by Product Support from Bulbs.com
                • Q:

                  What is expected of number of hours of use for the bulb?
                  Asked on 5/17/2011 by Wayne from Akron, OH

                  1 answer

                  • CUSTOMER CARE

                    A:

                    This bulb has an average rated life of 20,000 hours.

                    Answered on 5/19/2011 by Product Support from Bulbs.com
                • Q:

                  are these lights ok for kitchen use?
                  Asked on 5/5/2011 by J.P. from CA

                  1 answer

                  • CUSTOMER CARE

                    A:

                    These bulbs can be used in a kitchen. The cool white color that the bulb emits will provide enough light for performing kitchen tasks. It is advisable to use these in covered fixtures, although not necessary.

                    Answered on 5/5/2011 by Product Support from Bulbs.com
                • Q:

                  I want to know the specification of this bulb.
                  Would you please provide me a luminous intensity(cd) and illuminance(lx)?
                  thanks you
                  Asked on 1/19/2011 by JeHwan Lee from college station, TX

                  1 answer

                  • Staff Reviewer

                    A:

                    The lumens for this bulb are 2,650 (Initial) and 2,300 (mean). The lumens may be altered depending on the ballast factor of the ballast being used. The illuminance (lx) is determined based on the size of the room and the lumens. Since Lux is part of the metric system, the room will have to be measured to determine the square meters. Once the square meters are determined, divide those by the lumens. This will give the amount of Lux per square meter. The luminous intensity (cd) is not easily determined. There are many factors involved but the most important is the type of fixture the bulb is in and how much of the light output is being directed to a specific area or work plane.

                    Answered on 1/21/2011 by Product Support from Bulbs.com
                Displaying questions 1-6

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