Switch the lights on when there is not sufficient ambient light available, and off when there is sufficient ambient light available.
This ‘Re-set’ version switches the lights off when there is sufficient ambient light, but requires the wall switch to be operated in order to switch on. In this way the lights only switch on when they are demanded.
For lighting energy saving in offices, factories and sports halls.
Built-in differential ensures the artificial lights do not affect the photocell. Built-in time delay of 1 minute avoids unnecessary switching. For flush mounting onto false or plasterboard ceilings.
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Manual wall switch retained for overriding OFF
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