Temp in your gowroom may be a little high and this with fans moveingthe hotair around can cause windburns or the problem 99% will lie with your light been a little to near if it is more than a few inces away you may need to get a exsractor fan this will pull the hot air out of the grow room .I have a small grow area and i have just fitted one of the exstractor fans that are used in bathrooms that are used to pull air out of a shower area or bath this works ideal for a small area it cost 20 pound from one of the diy shops.