Can someone tell what my plants are suffering from?

Question from a fellow grower:
Our AC unit went out and it got up to about 115 degrees in the room and
we just got new light , we went from high pressure sodium to uv grow
lights , what do you think this could be from ? And how would I make it
go away ?

Light and heat issues - too much - need to move light up and what about your air exchange (air should be replaced every 60 seconds or so in grow space) do you use fans? This can be an easy fix !!