The first design task for a Dark Sky concept is to ascertain for what purpose and with what quality the particular areas are to be illuminated. The following is decisive for a lasting lighting concept:
- adequate illuminance
- avoidance of spill light above the horizontal plane
- correct alignment of luminaires
- reduce or switch off the lighting when no longer needed

The luminaires should be arranged such that the elements to be illuminated are optimally lit and no light shines past the objects. This avoids dazzling the observers.