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Difference between same size, diff power rated fluoresent?

Discussion in 'Lighting' started by ITSME.ULTIMATE, Jan 30, 2006.

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  1. F25T8 vs F30T8. Both 36"
    FO14T8(14W) vs F15T8 Both 18"

    What makes these lamps with same size, but different specs different?
  2. On Mon, 30 Jan 2006 04:53:44 -0800, ITSME.ULTIMATE

    I'm going to assume you live in North America since lamps
    and terminology differ around the world.
    The F25T8 is a "new technology" rapid start lamp that may be
    able to run on appropriate instant start ballasts depending
    upon the lamp manufacturer.

    The F30T8 is an "old technology" preheat lamp, also called a
    switch start lamp. It uses a completely different ballast so
    the operating current is different even through the
    operating voltage may be similar.
    FO14T8 should be a new technology T8 rapid start lamp, but I
    don't have a Sylvania catalog handy, while the F15T8 is most
    definitely an old technology preheat T8 lamp.
    The different powers are the result of using different
    ballasts that operate the lamps at different currents. They
    also have different electrodes to accommodate the different
    starting methods.

    Vic Roberts
    To reply via e-mail:
    replace xxx with vdr in the Reply to: address
    or use e-mail address listed at the Web site.

    This information is provided for educational purposes only.
    It may not be used in any publication or posted on any Web
    site without written permission.
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