Get an Oscillating fan and that should solve your problem too I had encounters with this same thing during my grow as well so I am definitely more than happy to share my knowledgeno fan is not... I never thought about light burn...thanks a mill I'll keep ya posted..
thanks again I have my fan blowing under canopy maybe I'll try moving it up while I go fan shopping...Get an Oscillating fan and that should solve your problem too I had encounters with this same thing during my grow as well so I am definitely more than happy to share my knowledge