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Seasonal Affective Disorder Light therapy.
  1. #1
    Ed Guest

    Default Seasonal Affective Disorder Light therapy.

    Anyone know how to determine how many lux in a watt light bulb ?
    I am told treatment consists of 10,000 lux for 30 to 60 min per day.
    Just wondering how many fluorescent bulbs I need.



  2. #2
    John Sheppard Guest

    Default Re: Seasonal Affective Disorder Light therapy.


    "Ed" <[email protected]> wrote in message
    news:9sRsh.62978$[email protected] et...
    > Anyone know how to determine how many lux in a watt light bulb ?
    > I am told treatment consists of 10,000 lux for 30 to 60 min per day.
    > Just wondering how many fluorescent bulbs I need.
    >


    Google will tell you how much flurescent bulbs put out....they age though



  3. #3
    ~tanya, tha second most hated hih-billy on tha Internet Guest

    Default Re: Seasonal Affective Disorder Light therapy.


    Ed wrote:
    > Anyone know how to determine how many lux in a watt light bulb ?


    probly by askin' tha light bulb people.

    > I am told treatment consists of 10,000 lux for 30 to 60 min per day.
    > Just wondering how many fluorescent bulbs I need.


    Full Spectrum Light Box, Sad Light, Sad Lite, Sun Light Box, or 10,000
    Lux Light Therapy Boxes.

    (just one, i'm thinkin'.)

    ~t


  4. #4
    ~tanya Guest

    Default Re: Seasonal Affective Disorder Light therapy.


    Vandy Terre wrote:
    > I added a 'day light' bulb to my work area and it has helped a lot.


    i added'ah violet wand ta my work area and it's helped a lot in tha
    attractin' freaks arena, but hey... LIGHT'S LIGHT !

    ....and i'm kinda desperate.

    (when ya get real old, kink counts.)

    ~t


  5. #5
    Vandy Terre Guest

    Default Re: Seasonal Affective Disorder Light therapy.

    On Sun, 21 Jan 2007 22:04:53 GMT, "Ed" <[email protected]> wrote:

    >Anyone know how to determine how many lux in a watt light bulb ?
    >I am told treatment consists of 10,000 lux for 30 to 60 min per day.
    >Just wondering how many fluorescent bulbs I need.
    >

    I added a 'day light' bulb to my work area and it has helped a lot. I started
    with incandescent bulbs and have now switched to fluorescent. I am exposed all
    the day while working in the house. Not a lot of money involved.

  6. #6
    Philip Peters Guest

    Default Re: Seasonal Affective Disorder Light therapy.

    ~tanya schreef:
    > Vandy Terre wrote:
    >> I added a 'day light' bulb to my work area and it has helped a lot.

    >
    > i added'ah violet wand ta my work area and it's helped a lot in tha
    > attractin' freaks arena, but hey... LIGHT'S LIGHT !
    >
    > ...and i'm kinda desperate.
    >
    > (when ya get real old, kink counts.)
    >
    > ~t



    Shocking.

    P.
    >


  7. #7
    ~tanya Guest

    Default Re: Seasonal Affective Disorder Light therapy.


    Philip Peters wrote:
    > ~tanya schreef:
    > > i added'ah violet wand ta my work area and it's helped a lot in tha
    > > attractin' freaks arena, but hey... LIGHT'S LIGHT !



    ta which Philip schreef?: (is that'n context?)

    > Shocking.


    very... that ANYONE would "get it."

    (i think i'm in love.)

    ~t


  8. #8
    Ed Guest

    Default Re: Seasonal Affective Disorder Light therapy.

    I have one of them quartz work lights on a stand 500 watts. I was wondering
    if that would help.



  9. #9
    Fig Guest

    Default Re: Seasonal Affective Disorder Light therapy.


    "Ed" <[email protected]> wrote in message
    news:rQpth.75032$[email protected] net...
    > I have one of them quartz work lights on a stand 500 watts. I was

    wondering
    > if that would help.
    >
    >

    Take a look at the wiki page http://en.wikipedia.org/wiki/Lux for an
    explaination of lux vs. lumens. Note that distance from the light source is
    a significant factor; commercial light boxes are built around focused
    reflectors and will specify their lux intensity at a given distance, e.g.,
    10,000 lux at 12".

    There are conflicting studies regarding whether full-spectrum bulbs are
    really necessary. In general, the lux measurement is more important.

    Check the lumen output on your quartz work light rather than wattage.



  10. #10
    Ed Guest

    Default Re: Seasonal Affective Disorder Light therapy.



    Which is Cheaper? A 500 watt Quartz Flood or a 150 watt High Pressure
    Sodium Flood?

    Which gives more light? A 500 watt Quartz Flood or a 150 watt High
    Pressure Sodium Flood?

    Which is Cheaper? A 500 watt Quartz Flood or a 150 watt High Pressure
    Sodium Flood?
    It's a trick question, really.
    The answer is-- Although a Quartz fixture costs far less to purchase
    initially, $16 compared to $77 for the High Pressure Sodium flood light, it
    is actually far more costly over a 10 year period, by over 900%!
    Here's a 10 Year cost comparison between a Quartz fixture and an HPS
    fixture that produces equal light output



    Fixture and Wattage
    150 watt HPS
    500 watt Quartz

    Light output in lumens:
    16,000 lumens
    10,500 lumens

    Lamp Life
    24,000 hours
    2,000 hours

    Initial Fixture Cost
    $77
    $16

    Annual Electricity Cost @ $ .07 kwh*
    $30
    $300

    Electricity Cost over 10 year lifetime
    $300
    $3000

    Lamp life @ 10 hours per night
    6.8 years
    7 months

    Lamp replacement costs for 6 years
    $24
    $264**

    Total Lifetime Cost
    $431 $3580
    * If the fixture is operated 10 hours per night and the local
    electricity cost is $ .07 per kwh, the national average. If your area's cost
    are higher, the savings for using HID lighting will be even more dramatic.
    ** Calculated by assuming the quartz lamp will be replaced 17.6 times
    during a 10 year period at $5 per lamp and $10 labor cost. A HPS lamp will
    cost $14 plus the same $10 labor cost.
    Which gives more light? A 500 watt Quartz Flood or a 150 watt High
    Pressure Sodium Flood?
    Another trick question.
    The answer is-- Although 500 is indeed more wattage than 150, the
    lights are very different in their ability to convert watts (power) into
    lumens (light).
    In other words, the highly efficient 150 watt HPS fixture converts
    watts to lumens so efficiently that its lumen output (16,000 lumens) is
    about equal to the less efficient 500 watt quartz fixture (10,500 lumens).






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