Light sensor for OFF at dusk and ON at daylight?

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Posted by dh on October 17, 2010, 11:05 pm
 
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I'm interested in finding a light sensor/110V outlet combination
that turns things off at dusk an on at daylight, instead of the
other way around as most of them do. Can anyone suggest where to
get such a thing, or where else I can ask about it?

Thanks for any help!
David


Posted by Bill Fuhrmann on October 18, 2010, 9:05 am
 I have never heard anyone who wanted that.  I doubt that anyone makes a
standard product for it (at any reasonable price).
The easiest way to get that would be to buy a standard one and put a relay
after it to invert the output.



Posted by willshak on October 18, 2010, 7:37 pm
 dh@. wrote the following:

I suppose you would have to rewire the light sensor so it works in reverse.

--

Bill
In Hamptonburgh, NY
In the original Orange County. Est. 1683
To email, remove the double zeroes after @

Posted by Stubby on October 19, 2010, 8:09 am
 On Oct 17, 11:05 pm, dh@. wrote:

You could use two light sensors in a box (with ventilation!).  The
first looks at the world while the second looks at the light on the
first sensor.

Posted by Petem on October 20, 2010, 11:50 pm
 
discussion :
8fd119b3-bc27-448d-b6fb-5e45c597aa16@g13g2000yqj.googlegroups.com...

Just put a 110 volt realy at the place of the lamp connection in a simple
dusk detector and use a N.C. connection on it to feed what ever you want..
if the relay is OFF (when the detector see some light) the currenty pass ..
simple simple simple..