Your in luck I just updated another blueprint. Looks like you are doing outdoor lights. The blueprint below can work with lux but you may want to consider sun elevation as then it will only turn ON at night. Have a look at the trigger FAQ in the below blueprint for a stairwell as it is the same for what you are doing. If you need a delay then sometimes your motion sensor has a setting for it or you can create a template sensor that has a delay OFF for you motion sensor and then use that template sensor in your night lights state trigger rather than your motion sensor.
If you need help for the template sensor then just let us know but if you using the other blueprint post the question there.
Smart Light - Entity - Sun Elevation - Ambient & Time Triggers
Blacky 