R.S.
Yes all are different. My daughter got a tiny zap from her nightlight one day when she woke up in the AM and started messing with it (she was 18 months at the time) so we took it out of her room and she didn't even seem to notice. My son, who is 3 and a half, will FLIP if he doesn't have one. I still like a night light when I sleep and I am 26 lol.