In fact, it is a night light system that automatically turns on the outside lights when it gets dark and turns them off at dawn. The circuit only applies to incandescent lamps.
This is one of the many versions of this circuit that the reader will find on the website. This...
This circuit is old, from an English publication from 1979, so the indicated sensor is no longer...
This circuit was obtained in documentation on medical applications from 1966. The circuit is used in...