Shabbat: Timers

Question

If a light is turned on automatically is that okay?

Answer

Shalom!

Thank you for your question!

It is permitted to set lights and air-conditioning to a timer to go on and off as needed on Shabbat.

Lights that are turned on by sensors, then one may not have it at home on Shabbos. However, when one walks on the street needs to pass a house that has such a sensor that turns on the light, it would be permissible to pass that house on Shabbos.


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