Photocell - Alter on/off Range

[jack0987]

Alas, another project that needs attending too.

I have one of these to replace the one I had that has ceased to work.



The problem with it is that it comes on about an hour too soon and shuts off an hour too late.
Is there a way to change that?

 

[Externet]

If you apply a piece of black insulating tape to partially cover the sensing window, it will need more light to activate, coming on later in the day.
If the light sensed at the end of the day is less than real because the placed tape dims it, it will shut off earlier.

Aiming the sensor away from direct ambient light will do the same.

 

[jack0987]

If you apply a piece of black insulating tape to partially cover the sensing window, it will need more light to activate, coming on later in the day.
If the light sensed at the end of the day is less than real because the placed tape dims it, it will shut off earlier.

Aiming the sensor away from direct ambient light will do the same.

I think your suggestion will do just the opposite of what I was hoping to accomplish.
It comes on about an hour earlier before dusk than I would like.
I think I need to get it more light. Maybe I should point it at the sky?
Would a circuit change maybe be possible if I can get it apart?