office lighting recommendation

Discussion in 'Lighting' started by Jeff Kish, Aug 18, 2004.

  1. Jeff Kish

    Jeff Kish Guest

    Hi.

    I'm in an office with standard Flourescents.
    I'd like to find some bulbs (reasonably priced) that will me more natural/less
    visually straining on my eyes as I stare at a computer all day.

    Can someone make a recommendation?
    Thanks

    Jeff Kish
     
    Jeff Kish, Aug 18, 2004
    #1
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  2. On Wed, 18 Aug 2004 12:11:35 -0400, Jeff Kish <>
    wrote:

    >Hi.
    >
    >I'm in an office with standard Flourescents.
    >I'd like to find some bulbs (reasonably priced) that will me more natural/less
    >visually straining on my eyes as I stare at a computer all day.
    >
    >Can someone make a recommendation?
    >Thanks
    >
    >Jeff Kish


    What type of "standard" fluorescent lamps? T12 or T8? I assume 4-foot.
    If T12 are they 40-watt or 34-watt?

    --
    Vic Roberts
    http://www.RobertsResearchInc.com
     
    Victor Roberts, Aug 19, 2004
    #2
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  3. You should try full spectrum or color correct lamps these are as close to
    natural sunlight as you can get. They are available in T8 or T12 in every
    length imaginable. They reduce glare and eye strain and can be used in any
    fixture. I hope this helps.
    BA Russell

    "Jeff Kish" <> wrote in message
    news:...
    Hi.

    I'm in an office with standard Flourescents.
    I'd like to find some bulbs (reasonably priced) that will me more
    natural/less
    visually straining on my eyes as I stare at a computer all day.

    Can someone make a recommendation?
    Thanks

    Jeff Kish
     
    Blue Ridge Supply, Aug 20, 2004
    #3
  4. Jeff Kish

    Jeff Kish Guest

    On Wed, 18 Aug 2004 15:29:24 -0500, "Dick Downey" <>
    wrote:

    >"Jeff Kish" <> wrote in message
    >news:...
    >> Hi.
    >>
    >> I'm in an office with standard Flourescents.
    >> I'd like to find some bulbs (reasonably priced) that will me more

    >natural/less
    >> visually straining on my eyes as I stare at a computer all day.
    >>
    >> Can someone make a recommendation?
    >> Thanks
    >>
    >> Jeff Kish

    >
    >1st would recommend going with TFT LCD Monitor. This will reduce eye strain
    >no matter what lamps you are using.
    >
    >Dick
    >

    Thanks, but work just pays for a standard Dell monitor.
    what else?
    Jeff Kish
     
    Jeff Kish, Aug 20, 2004
    #4
  5. Jeff Kish

    Jeff Kish Guest

    On Wed, 18 Aug 2004 21:37:28 -0400, Victor Roberts <>
    wrote:

    >On Wed, 18 Aug 2004 12:11:35 -0400, Jeff Kish <>
    >wrote:
    >
    >>Hi.
    >>
    >>I'm in an office with standard Flourescents.
    >>I'd like to find some bulbs (reasonably priced) that will me more natural/less
    >>visually straining on my eyes as I stare at a computer all day.
    >>
    >>Can someone make a recommendation?
    >>Thanks
    >>
    >>Jeff Kish

    >
    >What type of "standard" fluorescent lamps? T12 or T8? I assume 4-foot.
    >If T12 are they 40-watt or 34-watt?

    They look like 4 foot bulbs.
    I can read "34 Watt" off the bulb through the grill.
    Thanks
    oh. p.s. I have contacts.. "really incredibly bad eyes".
    Jeff Kish
     
    Jeff Kish, Aug 20, 2004
    #5
  6. On Fri, 20 Aug 2004 10:20:37 -0400, Jeff Kish <>
    wrote:

    >On Wed, 18 Aug 2004 21:37:28 -0400, Victor Roberts <>
    >wrote:
    >
    >>On Wed, 18 Aug 2004 12:11:35 -0400, Jeff Kish <>
    >>wrote:
    >>
    >>>Hi.
    >>>
    >>>I'm in an office with standard Flourescents.
    >>>I'd like to find some bulbs (reasonably priced) that will me more natural/less
    >>>visually straining on my eyes as I stare at a computer all day.
    >>>
    >>>Can someone make a recommendation?
    >>>Thanks
    >>>
    >>>Jeff Kish

    >>
    >>What type of "standard" fluorescent lamps? T12 or T8? I assume 4-foot.
    >>If T12 are they 40-watt or 34-watt?

    >They look like 4 foot bulbs.
    >I can read "34 Watt" off the bulb through the grill.
    >Thanks
    >oh. p.s. I have contacts.. "really incredibly bad eyes".
    >Jeff Kish


    OK, it sounds like you have 4-foot 34-watt T12 lamps, though they are
    also called 40-watt ES lamps, and if you feel the color is poor they
    are probably Cool White but it would be good to check.

    Cool White lamps have a color rendition index (CRI) of about 60, which
    is rather poor. You must replace the lamp with one of the same size
    and power rating, but you will probably be happy with any of the
    higher color quality versions such as the GE "SP" or "SPX" lamps, the
    Osram Sylvania "Designer" or "Designer Plus" series or the Philips
    "SPEC" series. The approximate CRI of each line is listed below.

    GE SP CRI = 70
    GE SPX CRI = 82
    Osram Sylvania Designer CRI = 70
    Osram Sylvania Designer Plus CRI = 80
    Philips SPEC CRI = 73

    Also, the lamps are available in color temperatures of 3000K and
    3500K, and sometimes 4100K. These are usually designated by the first
    two digits: 30, 35 41, etc.

    You will probably prefer the highest CRI you can buy, and a color
    temperature of 3000K or 3500K, though I do not know your preferences.

    There is usually no advantage to so-called "full spectrum" lamps and
    they are often less efficient and more expensive.

    --
    Vic Roberts
    http://www.RobertsResearchInc.com
    Replace xxx with vdr to reply via e-mail
     
    Victor Roberts, Aug 20, 2004
    #6
  7. Jeff Kish

    JM Guest

    quoting:
    >>>Hi.
    >>>
    >>>I'm in an office with standard Flourescents.
    >>>I'd like to find some bulbs (reasonably priced) that will me more

    natural/less
    >>>visually straining on my eyes as I stare at a computer all day.
    >>>
    >>>Can someone make a recommendation?
    >>>Thanks
    >>>
    >>>Jeff Kish

    >>
    >>What type of "standard" fluorescent lamps? T12 or T8? I assume 4-foot.
    >>If T12 are they 40-watt or 34-watt?

    >They look like 4 foot bulbs.
    >I can read "34 Watt" off the bulb through the grill.
    >Thanks
    >oh. p.s. I have contacts.. "really incredibly bad eyes".
    >Jeff Kish



    There is a relation between extended close work (such as stareing at computer
    monitors all day) and eye strain. The eye has to focus inward at close
    objects, and holding the focus there for long periods isn't easy.

    This is also the very common, but not so well known cause of nearsightedness.
    It is very stressfull to hold the focus inwards for a very long time, so the
    eye actually adapts itself by elongating so that it can view close objects
    without any focusing effort. And then your eye doctor gives you
    glasses/contacts which when worn for close work undoes the adapation, and
    your eyes have to adapt all over again by elongating some more. The process
    repeats. The glasses get thicker.

    Some things you can do to releave the strain are; 1) People with normal
    vision can wear reading glasses to reduce the focusing effort required by the
    eye, and even as a nearsightedness prevention. 2) People that are already
    moderatly nearsighted can simply remove the glasses/contacts when doing any
    extended close work. 3) People that are badly or severly nearsighted can
    purchace a weaker prescription (approx. 2-3 diopters weaker) glasses or
    contacts that are to be used for any extended close work. The weakness
    depends on how far you sit from the monitor or close work so that the eye can
    view the close objects without any focusing effort.

    On the lighting side of things, it's always a good idea to get rid of the
    34w/CW lamps. Talk to your boss or maintenance guy to install 3,000k lamps,
    preferably ones that are 40w. Also, offices tend to be lit brightly.
    Sometimes simply delamping two of the four lamps in each fixture helps.
     
    JM, Aug 20, 2004
    #7
  8. Jeff Kish

    Jeff Kish Guest

    On Fri, 20 Aug 2004 12:25:22 -0400, Victor Roberts <>
    wrote:

    <snip>
    >>They look like 4 foot bulbs.
    >>I can read "34 Watt" off the bulb through the grill.
    >>Thanks
    >>oh. p.s. I have contacts.. "really incredibly bad eyes".
    >>Jeff Kish

    >
    >OK, it sounds like you have 4-foot 34-watt T12 lamps, though they are
    >also called 40-watt ES lamps, and if you feel the color is poor they
    >are probably Cool White but it would be good to check.
    >
    >Cool White lamps have a color rendition index (CRI) of about 60, which
    >is rather poor. You must replace the lamp with one of the same size
    >and power rating, but you will probably be happy with any of the
    >higher color quality versions such as the GE "SP" or "SPX" lamps, the
    >Osram Sylvania "Designer" or "Designer Plus" series or the Philips
    >"SPEC" series. The approximate CRI of each line is listed below.
    >
    >GE SP CRI = 70
    >GE SPX CRI = 82
    >Osram Sylvania Designer CRI = 70
    >Osram Sylvania Designer Plus CRI = 80
    >Philips SPEC CRI = 73
    >
    >Also, the lamps are available in color temperatures of 3000K and
    >3500K, and sometimes 4100K. These are usually designated by the first
    >two digits: 30, 35 41, etc.
    >
    >You will probably prefer the highest CRI you can buy, and a color
    >temperature of 3000K or 3500K, though I do not know your preferences.
    >
    >There is usually no advantage to so-called "full spectrum" lamps and
    >they are often less efficient and more expensive.

    Thanks.
    Man, these are expensive enought! (18 - 25/bulb).

    Jeff Kish
     
    Jeff Kish, Aug 20, 2004
    #8
  9. In message <>, Jeff Kish
    <> writes
    >Thanks, but work just pays for a standard Dell monitor.
    >what else?


    If you want to work more comfortably, then buying your own LCD monitor
    might be something to consider. Just because it's "work" doesn't mean
    you shouldn't make it more pleasant.

    --
    Clive Mitchell
    http://www.bigclive.com
     
    Clive Mitchell, Aug 21, 2004
    #9
  10. On Fri, 20 Aug 2004 17:24:04 -0400, Jeff Kish <>
    wrote:

    >On Fri, 20 Aug 2004 12:25:22 -0400, Victor Roberts <>
    >wrote:
    >
    ><snip>
    >>>They look like 4 foot bulbs.
    >>>I can read "34 Watt" off the bulb through the grill.
    >>>Thanks
    >>>oh. p.s. I have contacts.. "really incredibly bad eyes".
    >>>Jeff Kish

    >>
    >>OK, it sounds like you have 4-foot 34-watt T12 lamps, though they are
    >>also called 40-watt ES lamps, and if you feel the color is poor they
    >>are probably Cool White but it would be good to check.
    >>
    >>Cool White lamps have a color rendition index (CRI) of about 60, which
    >>is rather poor. You must replace the lamp with one of the same size
    >>and power rating, but you will probably be happy with any of the
    >>higher color quality versions such as the GE "SP" or "SPX" lamps, the
    >>Osram Sylvania "Designer" or "Designer Plus" series or the Philips
    >>"SPEC" series. The approximate CRI of each line is listed below.
    >>
    >>GE SP CRI = 70
    >>GE SPX CRI = 82
    >>Osram Sylvania Designer CRI = 70
    >>Osram Sylvania Designer Plus CRI = 80
    >>Philips SPEC CRI = 73
    >>
    >>Also, the lamps are available in color temperatures of 3000K and
    >>3500K, and sometimes 4100K. These are usually designated by the first
    >>two digits: 30, 35 41, etc.
    >>
    >>You will probably prefer the highest CRI you can buy, and a color
    >>temperature of 3000K or 3500K, though I do not know your preferences.
    >>
    >>There is usually no advantage to so-called "full spectrum" lamps and
    >>they are often less efficient and more expensive.

    >Thanks.
    >Man, these are expensive enought! (18 - 25/bulb).
    >
    >Jeff Kish


    The T8 versions are much less expensive and also more efficient.
    Suggest to your employer that he upgrade the fixtures to high CRI T8
    lamps with electronic ballasts.

    --
    Vic Roberts
    http://www.RobertsResearchInc.com
    Replace xxx with vdr to reply via e-mail
     
    Victor Roberts, Aug 21, 2004
    #10
  11. Jeff Kish

    Jeff Kish Guest

    On Sat, 21 Aug 2004 00:44:52 +0100, Clive Mitchell
    <> wrote:

    >In message <>, Jeff Kish
    ><> writes
    >>Thanks, but work just pays for a standard Dell monitor.
    >>what else?

    >
    >If you want to work more comfortably, then buying your own LCD monitor
    >might be something to consider. Just because it's "work" doesn't mean
    >you shouldn't make it more pleasant.

    It is out of my price range. Thanks anyway.
    Jeff Kish
     
    Jeff Kish, Aug 23, 2004
    #11
  12. Jeff Kish

    Jeff Kish Guest

    On Fri, 20 Aug 2004 20:55:51 -0400, Victor Roberts <>
    wrote:

    >On Fri, 20 Aug 2004 17:24:04 -0400, Jeff Kish <>
    >wrote:
    >
    >>On Fri, 20 Aug 2004 12:25:22 -0400, Victor Roberts <>
    >>wrote:
    >>
    >><snip>

    <snip>
    >>>There is usually no advantage to so-called "full spectrum" lamps and
    >>>they are often less efficient and more expensive.

    >>Thanks.
    >>Man, these are expensive enought! (18 - 25/bulb).
    >>
    >>Jeff Kish

    >
    >The T8 versions are much less expensive and also more efficient.
    >Suggest to your employer that he upgrade the fixtures to high CRI T8
    >lamps with electronic ballasts.

    Thanks. but they won't fly for that..
    Jeff Kish
     
    Jeff Kish, Aug 23, 2004
    #12
  13. Jeff Kish

    Jeff Kish Guest

    On 21 Aug 2004 01:09:20 GMT, Ian Stirling <> wrote:

    >Jeff Kish <> wrote:
    >> Hi.
    >>
    >> I'm in an office with standard Flourescents.
    >> I'd like to find some bulbs (reasonably priced) that will me more natural/less
    >> visually straining on my eyes as I stare at a computer all day.
    >>
    >> Can someone make a recommendation?
    >> Thanks

    >
    >You might consider consulting an optician about glasses that focus
    >naturally on the screen.

    Well, I wear contacts for multiple reasons, and my optician already knows I
    stare at a computer all day. Maybe part of the problem is I need to be able to
    see well outside of the office also.

    My guess is that a wide screen a long ways away would be the best help, but
    that is not in my budget either.

    Thanks
    Jeff Kish
     
    Jeff Kish, Aug 23, 2004
    #13
  14. Jeff Kish

    JM Guest

    quoting:
    >>The T8 versions are much less expensive and also more efficient.
    >>Suggest to your employer that he upgrade the fixtures to high CRI T8
    >>lamps with electronic ballasts.

    >Thanks. but they won't fly for that..
    >Jeff Kish



    "T8 versions are much less expensive" isn't necesserly true anymore. Prices
    on T12's have come down greatly since the EPACT disaster.

    On last pirce check of GE lamps.

    F34T12/CW $1.21

    F40T12/SP41 $2.01
    F32T8/SP41 $2.48
     
    JM, Aug 23, 2004
    #14
  15. Jeff Kish

    TKM Guest

    "Jeff Kish" <> wrote in message
    news:...
    > Hi.
    >
    > I'm in an office with standard Flourescents.
    > I'd like to find some bulbs (reasonably priced) that will me more

    natural/less
    > visually straining on my eyes as I stare at a computer all day.
    >
    > Can someone make a recommendation?
    > Thanks
    >
    > Jeff Kish


    As you've probably guessed by now, the answer to your problem is not just
    changing one fluorescent tube for another and a good solution will cost more
    than a few dollars no matter what you do.

    So, do those in charge at your office respond to saving money or improving
    productivity? If you were visually more comfortable could you do more work
    or would you stay at your computer 15 minutes longer each day. Convert that
    to dollars and maybe someone will listen.

    Terry McGowan
     
    TKM, Aug 24, 2004
    #15
  16. On Mon, 23 Aug 2004 20:53:35 GMT, (JM)
    wrote:

    >quoting:
    >>>The T8 versions are much less expensive and also more efficient.
    >>>Suggest to your employer that he upgrade the fixtures to high CRI T8
    >>>lamps with electronic ballasts.

    >>Thanks. but they won't fly for that..
    >>Jeff Kish

    >
    >
    >"T8 versions are much less expensive" isn't necesserly true anymore. Prices
    >on T12's have come down greatly since the EPACT disaster.


    What EPACT disaster? I believe EPACT has had a rather positive impact
    on reducing energy consumption in the US.

    >On last pirce check of GE lamps.
    >
    >F34T12/CW $1.21
    >
    >F40T12/SP41 $2.01
    >F32T8/SP41 $2.48


    I meant much less expensive than the prices you quoted for T12 SP
    lamps in your earlier message.

    --
    Vic Roberts
    http://www.RobertsResearchInc.com
    Replace xxx with vdr to reply via e-mail
     
    Victor Roberts, Aug 25, 2004
    #16
  17. Jeff Kish

    JM Guest

    quoting:
    >>>>The T8 versions are much less expensive and also more efficient.
    >>>>Suggest to your employer that he upgrade the fixtures to high CRI T8
    >>>>lamps with electronic ballasts.
    >>>Thanks. but they won't fly for that..
    >>>Jeff Kish

    >>
    >>
    >>"T8 versions are much less expensive" isn't necesserly true anymore.

    Prices
    >>on T12's have come down greatly since the EPACT disaster.

    >
    >What EPACT disaster? I believe EPACT has had a rather positive impact
    >on reducing energy consumption in the US.


    T12's are cheap once again, America's energy consumpion is still going up and
    up. The oly real thing I praise EPACT for is getting rid 150w flood lamps.
    It was very common to see 150w flood lamps being installed in homes. Today,
    65w in homes and businesses are common, and even some cfls, big improvement.




    >>On last pirce check of GE lamps.
    >>
    >>F34T12/CW $1.21
    >>
    >>F40T12/SP41 $2.01
    >>F32T8/SP41 $2.48

    >
    >I meant much less expensive than the prices you quoted for T12 SP
    >lamps in your earlier message.


    Must not have been my message. I do occassionally quote prices for
    residential lights, such as GE's "Kitchen and bath ultra" at $3 to $4 each.
    But these are SPX phosphors, though.
     
    JM, Aug 25, 2004
    #17
  18. Jeff Kish

    Guest

    On Wednesday, 18 August 2004 17:11:35 UTC+1, Jeff Kish wrote:
    > Hi.
    >
    > I'm in an office with standard Flourescents.
    > I'd like to find some bulbs (reasonably priced) that will me more natural/less
    > visually straining on my eyes as I stare at a computer all day.
    >
    > Can someone make a recommendation?
    > Thanks
    >
    > Jeff Kish


    Hi there http://www.love4ighting.co.uk
     
    , Oct 18, 2012
    #18
  19. Jeff Kish

    Guest

    On Wednesday, 18 August 2004 17:11:35 UTC+1, Jeff Kish wrote:
    > Hi.
    >
    > I'm in an office with standard Flourescents.
    > I'd like to find some bulbs (reasonably priced) that will me more natural/less
    > visually straining on my eyes as I stare at a computer all day.
    >
    > Can someone make a recommendation?
    > Thanks
    >
    > Jeff Kish


    Hi,

    Check out http://www.love4lighting.co.uk/astro_lighting/
     
    , Oct 18, 2012
    #19
  20. Jeff Kish

    Ingo Thies Guest

    On 2012-10-18 19:29 wrote:

    >> Can someone make a recommendation?
    >> Thanks
    >>
    >> Jeff Kish

    >
    > Hi there http://www.love4ighting.co.uk


    Beside this there are also tools to reduce the color temperature of the
    computer screen automatically after sunset (or even at daytime). For Mac
    and Windows it is F.flux (proprietary freeware), for GNU/Linux it is
    Redshift (open source; don't mix up with the astronomical tool
    Redshift). However, reducing the color temperature below about 5000 K
    may also reduce color rendering, so it may not suitable for
    (photo)graphical work.

    Best wishes,

    Ingo
     
    Ingo Thies, Oct 18, 2012
    #20
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