On Jan 17, 8:12*pm, wrote:
On Mon, 17 Jan 2011 17:04:21 -0800, croy
wrote:





I'd like to install a combination motion-sensor (MS),
dawn-to-dusk (photocell, or PC) fixture in my garage that
would not come on at all during the day, but at night would
act like a normal motion-sensing light (during the day,
enough light comes in from a small window to make navigation
safe).

I'm guessing that the pre-made combo packages offered in the
stores are not meant to work inside a garage that just has a
small window for daylight.

I have a motion-sensor floodligh unit for starters
(Heath-Zenith), but I notice that when it gets current, it
has a one-minute or so warmup time, then a "lights on no
matter what" for whatever the period the device is set for,
and then is goes into normal motion-sensing mode.

Apparently, PCs have a warmup time as well, so putting the
PC between the MS and the lights would put a long delay
every time the MS sends current to the PC.

Does anyone here know of a way to wire up the MS, PC, and
lights so that the MS and PC are always powered up (and
warmed up), but the lights only come on when both MS AND PC
are closing thier switches?

Thanks,

croy

I have a regular Heath/Zenith MD in my garage and it works fine. You
can adjust the ambient light sensor so it doesn't come on in the
daytime. Just be sure to get the model with the ambient light
adjustment. They have lots of models.- Hide quoted text -

- Show quoted text -

Almost any hardware store has a motion sensor and daylight sensor
combined. I have bought several of that style over the years.