Fwd: [Bcma-l] lighting question

[bcma-l@museumsassn.bc.ca]

Hi Ron,

I forwarded your request to a lighting specialist/consultant.

His response is below.

Thanks,
Estelle Guthro
The Military Museums

---------- Forwarded message ----------
From: *Kaminski, Darryl* <Darryl.Kaminski@stantec.com 
<mailto:Darryl.Kaminski@stantec.com>>
Date: Mon, Jun 2, 2008 at 1:52 PM
Subject: RE: [Bcma-l] lighting question
To: "E. G." <e.guthro@gmail.com <mailto:e.guthro@gmail.com>>

 
Ron,
 
To answer your questions:
 
1) Compact Fluorescent Lamps (CFL) are suitable for wall-wash effects 
but can't be easily focused (not for spot). The UV is mostly converted 
by the phosphor coating of the tube into visible light (by comparison, 
halogen has MUCH more art-fading UV). Check with lamp vendors for specs.
Warmer tones still seem preferred by most viewers, so look for 3500-3700 
K). BTW, white LED lamps have NO UV or Infrared energy, just nice 
visible light (yes, they come in any tone, even warm ones). You can have 
wide or narrow focus too, just ask 'em.
 
2) As above, halogen (a type of incandescent) will have a UV component 
and of course a large infrared (heat) component. They are only about 
5-10% energy efficient. LED is about 10X more efficient than incandescent.
 
3) No!!! :-) These are huge energy hogs, tungsten lamps (the common 
lamp) being even worse than halogen. Plus the UV again...
 
 
Really, whether you have 12 volt or 120 volt tracks, look into LEDs. One 
of my faves for wide options, Nemalux of Calgary: 
http://www.nemalux.com/products/index.php
 
 
Please e-mail me directly if you have other questions.
 
Regards,
 
*Darryl Kaminski*
Lighting Expert, Energy Consultant
Stantec
Ph: (403) 716-8006
djkaminski@stantec.com <mailto:djkaminski@stantec.com>
*stantec*.com <http://www.stantec.com/>
 
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---------- Forwarded message ----------
From: <bcma-l-admin@museumsassn.bc.ca 
<mailto:bcma-l-admin@museumsassn.bc.ca>>
Date: Fri, May 30, 2008 at 4:49 PM
Subject: [Bcma-l] lighting question
To: bcma-l@museumsassn.bc.ca <mailto:bcma-l@museumsassn.bc.ca>


Hi Everyone: We are changing the exhibits in all of our galleries and 
are trying to find lighting solutions. We have an existing track system 
that allows to place fixtures pretty well wherever we want but we 
wanting to create some dramatic effects. Some walls will require a wash 
of light but other areas, particularly cases, need a more focused 
dramatic look. My questions are:
1. Are compact fluorescents suitable for museum lighting? Do they emit 
UV light? What colour temperature works best in museums? I have tried a 
4100 degree K. light and it seems so cold.
2. What about halogen lights?
3. Should we stick with incandescent?
Replies of list are welcomed but perhaps these are questions that others 
might be interested in.
Thanks for the help.
 
Ron Denman
Director
Chilliwack Museum and Archives
45820 Spadina Avenue
Chilliwack, BC V2P 1T3
604-795-5210