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Finding single 48" fluorescent fixture

Discussion in 'Electronic Repair' started by Jeff, Jul 19, 2005.

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  1. Jeff

    Jeff Guest

    Am I crazy or are single 48" fluorescent fixtures hard to come by? I
    don't want the typical shop light, but rather something that is thin
    and kind of mounts it sideways (if that makes sense) Like this:

    | --- BULB --- |
    | |
     
  2. Reed

    Reed Guest

    Try a search on Froogle for <single-lamp 48">
    Got more than 10 hits
     
  3. RBM

    RBM Guest

    If you want a thinner, better fixture look for a side mounted 1/32 fixture.
    It uses a much more reliable and efficient ballast and a TO-8 lamp which is
    thinner than the standard T12
     
  4. Not sure if I got it at Home Depot or Menards, but I got a bare fixture
    with no shade called Homelux 48" striplight. It has rapid start ballast
    and can use 40w, 34w or 25w 4' bulb.

    I have not installed it yet because the old fixture boxed in over the
    kitchen sink on an outside wall only occasionally gives me starting
    trouble in extremely cold weather (maybe colder than room temperature).
     
  5. Jeff

    Jeff Guest

  6. James Sweet

    James Sweet Guest

    If it's having trouble starting you may just have a bad ground to the
    fixture.

    Those strips are easy to find, though they have those horrid low power
    factor ballasts that run even the 4' 40W tubes at no more than about 25W.
    You can get *far* better performance by fitting one with an electronic
    ballast and F32T8 tube.
     
  7. If this strip light has a 40-watt ballast it should not be used with
    25-watt lamps, as they will have a very short life. If it has a
    25-watt ballast, especially an L-C ballast that produces very poor
    lamp current crest factor, I recommend you get one with a decent
    40-watt ballast.

    --
    Vic Roberts
    http://www.RobertsResearchInc.com
    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.
     
  8. Seems like a fair price to me since this is a specialized low volume
    product with line cord and built-in switch. I can't tell if the lamp
    is replaceable, but if not it is similar to the GE BriteStix - which
    is available only in 2-foot, 20-watt version.

    You could, of course, buy a standard 4-foot, one-lamp strip light
    fixture, paint the fixture black, add a switch and line cord and then
    a black light fluorescent lamp. When you get all done you will have
    spent more than $40.

    --
    Vic Roberts
    http://www.RobertsResearchInc.com
    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.
     
  9. TKM

    TKM Guest

    Unfortunately, the big box retailers with their low-price focus limit your
    choices. There are plenty of 48" fixtures made that are easily obtained,
    but you do have to get them through an electrical distributor. I found it
    useful to find a local distributor who would sell to me, but there are
    on-line distributors with good pricing on such products too. Look on the
    Lithonia web site for a wide variety of 48" fixtures, for example.

    TKM
     
  10. James Sweet

    James Sweet Guest


    Every single tube strip light I've seen has a ballast rated for 36-48" tubes
    which runs either one at about 25W. They're ok for 36" tubes but worthless
    for 48".
     
  11. You need to look for commercial grade fixtures, such as the
    Lithonia S 1 40 120 ES strip light. This is designed for a 4-foot,
    34-watt T12 lamp. Grainger lists this fixture for $25.30.

    http://www.grainger.com/Grainger/productdetail.jsp?xi=xi&ItemId=1613506256&ccitem=

    You will notice that the ballast losses are rather high for the
    one-lamp EM ballast used in this fixture. I would recommend a fixture
    using a 4-foot 32-watt, T8 lamp and matching electronic ballast.

    The Lithonia part number would be S 1 32 120 GEB. I don't see this
    listed on the Grainger Web site.

    --
    Vic Roberts
    http://www.RobertsResearchInc.com
    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.
     
  12. James Sweet

    James Sweet Guest

    I always just use the cheap fixtures and put a decent electronic ballast in
    them, those 34W energy saver tubes are a joke, a 32W T8 on a HF electronic
    ballast is substantially brighter.
     
  13. Jeff

    Jeff Guest

    I guess thats probably the brightest and best for what I'm trying to
    do. Home Depot's got them for like $16 which sounds pretty cheap. I'm
    betting they dont have a standard wall plug though, so thats another
    project in itself :( Any suggestions on that? The bulb I've got is a
    40 watt T12.
     
  14. Guest

    Buy a 3-wire round extension cord that is the length you require. Make
    sure the fixture has a standard 1/2" knockout on it, then buy a 1/2"
    gland nut fitting suitable for the outer diameter of the cord. The
    gland nut has metal threads and a locknut on one side to go into the
    fixture, and a domed metal nut and rubber bushing on the other side
    to grip the cord. Also buy some yellow wire nuts.

    Remove the knockout and install the gland nut fitting. Cut off the
    female end of the extension cord and insert the extension cord through
    the fitting. Strip the outer jacket of the cord for 6", then strip the
    individual wires 1/2". Join the cord and ballast wires with wire nuts:
    black-black, white-white. The green wire from the cord must go to the
    green wire or grounding screw in the fixture.

    Plug it in and try it. When you're happy, unplug it and tighten the
    locknut and domed nut on the gland nut to secure the cord.

    Matt Roberds
     
  15. James Sweet

    James Sweet Guest


    You can also buy replacement power cords at most hardware stores, though
    sometimes an extension cord is actually cheaper. A couple years ago I got a
    big box of surplus computer power cords and cut the end off them
    occasionally to use them as replacement cords.
     
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