Low voltage lighting controls

riverwatcherJanuary 7, 2009

Is it possible, on the 110v. line side, to activate the transformer with a photo cell(with a timer to shut the system bown after a certain time) and then have a motion detector trip the system back on for a short duration? The scenario is to have a driveway illuminated for a certain period in the evening for ambiance, and then have the system turn on for ingress and egress.

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lightguy

Sure. This is done with landscaping quite often.
The transformer doesn't particularly care since it's just getting line power in... or not.

    Bookmark   January 7, 2009 at 4:41PM
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dim4fun

Wire this with dual power paths into transformer. Timer before photocell as one path. Then motion detector as the second path. You must use only one circuit for this and should have a master switch to turn it all off for service. If the lights are already on, detecting motion just sends the power again without any issue (when you use same circuit).

One of the lansscape lighting companies have or had a ready to go product that did this but I can't remember which.

    Bookmark   January 7, 2009 at 4:49PM
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riverwatcher

Thanks for the responce fellas.
There will be just one 110v. circut with a on-off switch. I guess my concern is that if one control turns the system on then there will be feed back from the transformer to the other control. I had planned on using 'PRECISION' mod. ESC-124DS photo cell,it's the only one I could find with a timer, and they won't say if feed back is a problem. I have searched for a combo unit, with zero luck. So I'll go with the two path system you sugested and see what happens.

Thanks again

    Bookmark   January 7, 2009 at 7:20PM
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