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<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;color:black'>Carl is correct. I would add two thoughts.
We have been buying CFLs from Home Depot, Ikea and we have been getting
freebies from the Los Angels Department of Water and Power. Both the Ikea and
freebies fail in 1-2 years, so the story about 5-7 years life is a WAG. Second,
let’s all hold our collective breath: LEDs will rule the illumination market
fairly soon just as they have conquered the indication market for many years
now. It would be great if anyone has accumulated some lifetime statistics on
LED lighting. </span></font></p>

<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;color:black'> </span></font></p>

<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;color:black'>- Peter</span></font></p>

<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;color:black'> </span></font></p>

<div>

<p><font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'>Peter T. Parrish, Ph.D., President<br>
California Solar Engineering, Inc.<br>
820 Cynthia Ave., Los Angeles, CA 90065<br>
Ph 323-258-8883, Mobile 323-839-6108, Fax 323-258-8885<br>
CA Lic. 854779, NABCEP Cert. 031806-26<br>
peter.parrish@calsolareng.com</span></font><font size=2 color=blue face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:blue'> </span></font></p>

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<div>

<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>

<hr size=2 width="100%" align=center tabindex=-1>

</span></font></div>

<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
re-wrenches-bounces@lists.re-wrenches.org
[mailto:re-wrenches-bounces@lists.re-wrenches.org] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Carl Emerson<br>
<b><span style='font-weight:bold'>Sent:</span></b> Tuesday, December 09, 2008
11:58 AM<br>
<b><span style='font-weight:bold'>To:</span></b> 'RE-wrenches'<br>
<b><span style='font-weight:bold'>Subject:</span></b> [RE-wrenches] CFL
lighting and the mercury hazzard.</span></font></p>

</div>

<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> </span></font></p>

<p class=MsoNormal><font size=3 color=blue face=Arial><span lang=EN-GB
style='font-size:12.0pt;font-family:Arial;color:blue'>Hi there,</span></font></p>

<p class=MsoNormal><font size=3 color=blue face=Arial><span lang=EN-GB
style='font-size:12.0pt;font-family:Arial;color:blue'> </span></font></p>

<p class=MsoNormal><font size=3 color=blue face=Arial><span lang=EN-GB
style='font-size:12.0pt;font-family:Arial;color:blue'>We have for years been
advocating the use of energy efficient Compact Fluorescent Lighting (CFL) to
reduce loads and reduce system cost.</span></font></p>

<p class=MsoNormal><font size=3 color=blue face=Arial><span lang=EN-GB
style='font-size:12.0pt;font-family:Arial;color:blue'> </span></font></p>

<p class=MsoNormal><font size=3 color=blue face=Arial><span lang=EN-GB
style='font-size:12.0pt;font-family:Arial;color:blue'>A recent study by DEP in
Maine has raised the alarm about mercury poisoning form these bulbs. If there
is a breakage the resulting levels of mercury on the floor of the house are
well above acceptable limits. Secondly there seems to be little serious effort
to safely recycle these bulbs in a manner that keeps the mercury out of the eco
system.</span></font></p>

<p class=MsoNormal><font size=3 color=blue face=Arial><span lang=EN-GB
style='font-size:12.0pt;font-family:Arial;color:blue'> </span></font></p>

<p class=MsoNormal><font size=3 color=blue face=Arial><span lang=EN-GB
style='font-size:12.0pt;font-family:Arial;color:blue'>I understand that LED
lamps are mercury free. This would seem to be a much safer alternative.</span></font></p>

<p class=MsoNormal><font size=3 color=blue face=Arial><span lang=EN-GB
style='font-size:12.0pt;font-family:Arial;color:blue'> </span></font></p>

<p class=MsoNormal><font size=3 color=blue face=Arial><span lang=EN-GB
style='font-size:12.0pt;font-family:Arial;color:blue'>While many of us have
mercury amalgams in our mouth the mercury is supposedly in a form that is not
significantly ingested, whereas the mercury in a CFL is in vapour form when hot
and powder form when cold, and therefore can pose a hazard to health. </span></font></p>

<p class=MsoNormal><font size=3 color=blue face=Arial><span lang=EN-GB
style='font-size:12.0pt;font-family:Arial;color:blue'> </span></font></p>

<p class=MsoNormal><font size=3 color=blue face=Arial><span lang=EN-GB
style='font-size:12.0pt;font-family:Arial;color:blue'>Can I suggest some
discussion on this and can we do our best to keep it scientific, I don’t
mean to spread emotional alarm without due cause.</span></font></p>

<p class=MsoNormal><font size=3 color=blue face=Arial><span lang=EN-GB
style='font-size:12.0pt;font-family:Arial;color:blue'> </span></font></p>

<p class=MsoNormal><font size=3 color=blue face=Arial><span lang=EN-GB
style='font-size:12.0pt;font-family:Arial;color:blue'>Thanks,</span></font></p>

<p class=MsoNormal><font size=3 color=blue face=Arial><span lang=EN-GB
style='font-size:12.0pt;font-family:Arial;color:blue'> </span></font></p>

<div>

<p class=MsoNormal><font size=3 color=blue face=Arial><span lang=EN-NZ
style='font-size:12.0pt;font-family:Arial;color:blue'>Carl Emerson</span></font></p>

<p class=MsoNormal><font size=3 color=blue face=Arial><span lang=EN-NZ
style='font-size:12.0pt;font-family:Arial;color:blue'>Free Power Ltd.</span></font></p>

<p class=MsoNormal><font size=3 color=blue face=Arial><span lang=EN-NZ
style='font-size:12.0pt;font-family:Arial;color:blue'>Auckland N.Z.</span></font></p>

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