First of all it should be clear under which conditions it should be dimmed to 40 % or 100 %.
With the additional conditions “brightness < 8” and “after sunset” the conditions may overlap with the time (23:00 - 05:00).
But of course all conditions are possible, but then you have to create more flows.
Info: You can also ask an admin to move the post to the german section, e.g. @PhilS.