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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">All light will cause damage, given the intensity, duration and the wavelength to fur, feathered and other materials. As Cathy mentions, UV damages the structure
of the hair. Visible light (and UV) will cause fading and infrared causes heat – which will also cause damage through desiccation etc. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">LED lamps significantly reduce the IR (heat) end of the equation. However you do have to look at the spectrum of the individual types of light to determine
how much (if any) UV is included. The other thing to note is the color temperature – this determines how the colors are rendered – that is how we see the color. There is a wide range of color temperature that you can get – depending on what you want – and
you may have to use colored filters to get the look you want. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">For more information on LED, check out Art Preservation Services (<a href="http://www.apsnyc.com">www.apsnyc.com</a>) for Steve Weintraub’s article on the
subject – published for AIC News 2010. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Gretchen Anderson, Conservator<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Carnegie Museum of Natural History<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin:0in;margin-bottom:.0001pt"><b><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""> nhcoll-l-bounces@mailman.yale.edu [mailto:nhcoll-l-bounces@mailman.yale.edu]
<b>On Behalf Of </b>Jim Druzik<br>
<b>Sent:</b> Monday, October 20, 2014 9:08 AM<br>
<b>To:</b> Dan Brooks; nhcoll-l@mailman.yale.edu<br>
<b>Subject:</b> Re: [Nhcoll-l] LED lighting<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin:0in;margin-bottom:.0001pt"><span style="font-size:10.0pt;font-family:"Segoe UI","sans-serif"">Are LED lights damaging to animal mounts?<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin:0in;margin-bottom:.0001pt"><span style="font-size:10.0pt;font-family:"Segoe UI","sans-serif""> <o:p></o:p></span></p>
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<p class="MsoNormal" style="margin:0in;margin-bottom:.0001pt"><span style="font-size:10.0pt;font-family:"Segoe UI","sans-serif"">No more so, and probably slightly less than tungsten or quartz-halogen.<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin:0in;margin-bottom:.0001pt"><span style="font-size:10.0pt;font-family:"Segoe UI","sans-serif"">But lighting without damage is an impossibility - a fool's errand some might suggest. <o:p></o:p></span></p>
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<p class="MsoNormal" style="margin:0in;margin-bottom:.0001pt"><span style="font-size:10.0pt;font-family:"Segoe UI","sans-serif""> <o:p></o:p></span></p>
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<p class="MsoNormal" style="margin:0in;margin-bottom:.0001pt"><span style="font-size:10.0pt;font-family:"Segoe UI","sans-serif"">The following technical note came out a few days ago and tackles three myths about LED damage.<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin:0in;margin-bottom:.0001pt"><span style="font-size:10.0pt;font-family:"Segoe UI","sans-serif""> <o:p></o:p></span></p>
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<p class="MsoNormal" style="margin:0in;margin-bottom:.0001pt"><span style="font-size:10.0pt;font-family:"Segoe UI","sans-serif""><a href="http://www1.eere.energy.gov/buildings/ssl/pdfs/true-colors.pdf">http://www1.eere.energy.gov/buildings/ssl/pdfs/true-colors.pdf</a><o:p></o:p></span></p>
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<p class="MsoNormal" style="margin:0in;margin-bottom:.0001pt"><span style="font-size:10.0pt;font-family:"Segoe UI","sans-serif""> <o:p></o:p></span></p>
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<p class="MsoNormal" style="margin:0in;margin-bottom:.0001pt"><span style="font-size:10.0pt;font-family:"Segoe UI","sans-serif"">I also strongly suggest anyone with an interest in this topic goggle the "U.S.<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin:0in;margin-bottom:.0001pt"><span style="font-size:10.0pt;font-family:"Segoe UI","sans-serif"">Department of Energy GATEWAY Reports" and you'll find three or four museum case studies on solid-state lighting conversions.
<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin:0in;margin-bottom:.0001pt"><span style="font-size:10.0pt;font-family:"Segoe UI","sans-serif""><br>
Also Stefan Michalski and I are working on a revised version of "Guideline for Assessing Solid-State Lighting for Museums". The earlier version is a little outdated at this point in terms of the lamps we show but the color science and technology of LEDs is
still accurate. We also include best practices in exhibition conservation lighting. I'm still making it available.
<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin:0in;margin-bottom:.0001pt"><span style="font-size:10.0pt;font-family:"Segoe UI","sans-serif""> <o:p></o:p></span></p>
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<p class="MsoNormal" style="margin:0in;margin-bottom:.0001pt"><span style="font-size:10.0pt;font-family:"Segoe UI","sans-serif"">James Druzik<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin:0in;margin-bottom:.0001pt"><span style="font-size:10.0pt;font-family:"Segoe UI","sans-serif"">Senior Scientist<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin:0in;margin-bottom:.0001pt"><span style="font-size:10.0pt;font-family:"Segoe UI","sans-serif"">The Getty Conservation Institute<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin:0in;margin-bottom:.0001pt"><span style="font-size:10.0pt;font-family:"Segoe UI","sans-serif""> <o:p></o:p></span></p>
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<p class="MsoNormal" style="margin:0in;margin-bottom:.0001pt"><span style="font-size:10.0pt;font-family:"Segoe UI","sans-serif""> <o:p></o:p></span></p>
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<p class="MsoNormal" style="margin:0in;margin-bottom:.0001pt"><span style="font-size:10.0pt;font-family:"Segoe UI","sans-serif""><br>
>>> Dan Brooks <<a href="mailto:dbrooks@hmns.org">dbrooks@hmns.org</a>> 10/20/2014 4:21 AM >>><o:p></o:p></span></p>
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<p class="MsoNormal" style="margin:0in;margin-bottom:.0001pt"><span style="font-size:10.0pt;font-family:"Segoe UI","sans-serif"">Greetings all,<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin:0in;margin-bottom:.0001pt"><span style="font-size:10.0pt;font-family:"Segoe UI","sans-serif""><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin:0in;margin-bottom:.0001pt"><span style="font-size:10.0pt;font-family:"Segoe UI","sans-serif"">We are installing a new TX wildlife hall, and the gaffers swear the new LED lights have NO damage to the specimens. But they also
asked if I want UV filters on the lights! <o:p></o:p></span></p>
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<p class="MsoNormal" style="margin:0in;margin-bottom:.0001pt"><span style="font-size:10.0pt;font-family:"Segoe UI","sans-serif""><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin:0in;margin-bottom:.0001pt"><span style="font-size:10.0pt;font-family:"Segoe UI","sans-serif"">Are LED lights damaging to animal mounts?<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin:0in;margin-bottom:.0001pt"><span style="font-size:10.0pt;font-family:"Segoe UI","sans-serif""><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin:0in;margin-bottom:.0001pt"><span style="font-size:10.0pt;font-family:"Segoe UI","sans-serif""><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin:0in;margin-bottom:.0001pt"><span style="font-size:10.0pt;font-family:"Segoe UI","sans-serif"">Thanks,<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin:0in;margin-bottom:.0001pt"><span style="font-size:10.0pt;font-family:"Segoe UI","sans-serif"">Dan<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin:0in;margin-bottom:.0001pt"><span style="font-size:10.0pt;font-family:"Segoe UI","sans-serif""><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:13.0pt;font-family:"Times","serif";color:navy">Daniel M. Brooks, Ph.D.</span><span style="color:navy"><br>
</span></b><span style="font-size:9.0pt;font-family:"Times","serif";color:navy">Curator of Vertebrate Zoology</span><o:p></o:p></p>
<p class="MsoNormal"><i><span style="font-size:15.0pt;font-family:"Times","serif";color:#ACA9CE">the</span></i><span style="font-size:15.0pt;font-family:"Times","serif";color:#1C5DB7">HoustonMuseum</span><i><span style="font-size:15.0pt;font-family:"Times","serif";color:#ACA9CE">ofnaturalscience</span></i><o:p></o:p></p>
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