Same strain different lights different leafs

Different phenotypes.. nothing to worrie about 😄

Yes, all plants are individuals and grow differently, even from the same strain and seeds from the same packet. Only clones will look like each other. Different lights have different bulbs and this too will effect what/how the plants look and grow. Hope this helps,........... Organoman.

Unless their cuttings of the same plant its probably just difference in the phenotypes

Sounds like Low temps at lights off but it could also be the LED it's under.