I could use some help with join for a motion activated light
I think I could use some help with the join command. I stumbled over the fact that I used some different ways to get a motion activated light. (I already changed most rules to look similar, but i think that were my different types of rules (see picture)
My question now: Is one of those ways to prefer or to avoid and for what reason? Perhaps someone can clarify it for me? Meight one of those ways perhaps lead to serious problems and why?
Thanks in advance