hey all one of my plants took off toward my 400w HPS and i can see it burned one of my leaves. What i am concerned is the new growth in the front on the bottom where you can see all yellow where theres new growth. Is that burn?
Looks like burn but like the other guys said you'll be ok. Try to keep at a safe distance especially during flower because you can stress the plant and produce a few seeds that you won't see until you harvest
Yea it is heat burn we sometimes forget the that little HID light produces a more powerful light density than the sun at its jacket. keep her 12in-24in away as artificial light reduces its lumen's by 25% every foot you will be fine. and as stated before leaves are the only part of the plant that will not regenerate. so here comes some new growth.