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<font face="Arial">I agree Alan,<br>
and another aspect is also important,<br>
you don't just need light so the people can see the plants but<br>
you want to mimic the sun for the plants, so they can grow;<br>
therefor you need a (mix of) specific light ' color' or
wavelengths,<br>
if you get a T 5 with the good light spectrum for plant growth,<br>
</font>and you dim it let say 50%, whats really left then ?<br>
50% of the energy consumption/hour, yes, but has it still 50% of
lumen output?<br>
And has it still the good color temperature / usefull wavelenghts ?
(i doubt it)<br>
Therefor it looks better to switch on & off what you need during
the day<br>
( probably depending on natural solar light influx.<br>
<br>
And to for-come the need to install more fixtures ( more $ to work
& material)<br>
instead of 5 x 100W with dimmers you may choose 2 x 250W +3 x 50W<br>
or such a combination.<br>
<br>
I don't know the latest on LEDS, can you have 'm with the right
colortemp to server as grow light,<br>
apears as some kind of white to people and with enough lumen?<br>
I found some info but most people don't want to sit in red or other
colored light:<br>
<a class="moz-txt-link-abbreviated" href="http://www.ledgrowlights.info/LED-light-wavelengths.php">www.ledgrowlights.info/LED-light-wavelengths.php</a><br>
<br>
<br>
A rhetoric question for that client : Is it really green to install
plants in a cellar or other dark interior,<br>
and then waste ( ecological) expensive electric energy to keep them
alive ?<br>
<br>
Grts<br>
Bruno M.<br>
<br>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br>
Op 20-3-2012 22:22, Alan Abrams schreef:
<blockquote
cite="mid:CADj3_s4=yPD3wA4VXrZJ7H+KAZB5WFjWCVJzQuzTZbiR4r+wFQ@mail.gmail.com"
type="cite">the latter--based on the assumption that dimmers
consume some measurable current...<br>
<br>
<br>
<div class="gmail_quote">On Tue, Mar 20, 2012 at 5:17 PM, Gennaro
Brooks-Church - Eco Brooklyn <span dir="ltr"><<a
moz-do-not-send="true" href="mailto:info@ecobrooklyn.com">info@ecobrooklyn.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
RE: mo' fishunt, too, lumen for lumen, one would expect...
<div><br>
</div>
<div>Which one is more efficient? The dimming setup or
the separate fixture/switch setup?</div>
<div>
<div class="im"> <br clear="all">
Gennaro Brooks-Church<br>
---------------------------------------------------------------------<br>
<br>
</div>
<div>
<div class="h5">
<div class="gmail_quote">On Tue, Mar 20, 2012 at 4:50
PM, Alan Abrams <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:alan@abramsdesignbuild.com"
target="_blank">alan@abramsdesignbuild.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
mo' fishunt, too, lumen for lumen, one would
expect...<br>
<br clear="all">
<b style="color:rgb(0,102,0)">Alan Abrams</b><b
style="color:rgb(0,102,0)"><br>
Abrams Design Build LLC</b><br
style="color:rgb(0,102,0)">
<i style="color:rgb(0,102,0)">A sustainable approach
to beautiful space</i><br
style="color:rgb(0,102,0)">
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office </font></font><font
style="color:rgb(0,102,0)" size="1"><font>301-270-NET-
ZERO <a moz-do-not-send="true"
href="tel:%28301-270-6380"
value="+13012706380" target="_blank">(301-270-6380</a>)
<br>
</font></font><font style="color:rgb(0,102,0)"
size="1"><font>fax </font></font><font
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value="+13012701466" target="_blank">301-270-1466</a>
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</font></font><font style="color:rgb(0,102,0)"
size="1"><font>cell </font></font><font
style="color:rgb(0,102,0)" size="1"><font><a
moz-do-not-send="true" href="tel:202-437-8583"
value="+12024378583" target="_blank">202-437-8583</a></font></font><font
style="color:rgb(0,102,0)" size="1"><font><br>
<a moz-do-not-send="true"
style="color:rgb(51,51,255)"
href="mailto:alan@abramsdesignbuild.com"
target="_blank">alan@abramsdesignbuild.com</a><br
style="color:rgb(51,51,255)">
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style="color:rgb(51,51,255)"
href="http://www.abramsdesignbuild.com/"
target="_blank">www.abramsdesignbuild.com</a></font></font>
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----------------------------------------------------------------<br>
<div class="gmail_quote">On Tue, Mar 20, 2012 at
4:45 PM, Gennaro Brooks-Church - Eco Brooklyn
<span dir="ltr"><<a moz-do-not-send="true"
href="mailto:info@ecobrooklyn.com"
target="_blank">info@ecobrooklyn.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote"
style="margin:0 0 0 .8ex;border-left:1px
#ccc solid;padding-left:1ex">
That is a good idea. I think that once you
factor in the extra material and labor it
would be the same cost though.
<div>
<div><br clear="all">
<br>
</div>
<div class="gmail_quote">
<div>
<div>On Tue, Mar 20, 2012 at 4:38 PM,
Vadurro, Rob, EMNRD <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:rob.vadurro@state.nm.us"
target="_blank">rob.vadurro@state.nm.us</a>></span>
wrote:<br>
</div>
</div>
<blockquote class="gmail_quote"
style="margin:0 0 0
.8ex;border-left:1px #ccc
solid;padding-left:1ex">
<div>
<div>
<div link="blue" vlink="purple"
lang="EN-US">
<div>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Many
times the need for
dimmable is really two or
maybe three light levels.
Perhaps you could install
a low light level fixture
arraignment and a bright
one alongside it of LEDs
or T5s on separate
switches.</span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:ARchitxt;color:#1f497d">Rob
Vadurro AIA, LEED AP</span><span
style="color:#1f497d"></span></p>
<span
style="font-size:10.0pt;font-family:ARchitxt;color:#1f497d"></span><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"></span>
<div
style="border:none;border-top:solid
#b5c4df 1.0pt;padding:3.0pt
0in 0in 0in">
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif""></span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">Brooks-Church
- Eco Brooklyn<br>
<b>Sent:</b> Tuesday,
March 20, 2012 2:19 PM<br>
<b>To:</b> listserv
Green Building new<br>
<b>Subject:</b>
[Greenbuilding] lighting</span></p>
</div>
<div>
<div>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Hello,</p>
<div>
<p class="MsoNormal">My
company is building an
interior living wall
in a low light area. </p>
</div>
<div>
<p class="MsoNormal">I
need to light the span
- about 40 feet long -
and they need to be
dimmable.</p>
</div>
<div>
<p class="MsoNormal">I'm
having a hard time
finding affordable T5
dimmable lights. They
are about $135 each.</p>
</div>
<div>
<p class="MsoNormal">I
can't find LED that
meet the criteria. </p>
</div>
<div>
<p class="MsoNormal">Any
suggestions? </p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal"
style="margin-bottom:12.0pt">Gennaro
Brooks-Church</p>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</blockquote>
</div>
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