I had checked the sticky's before posting and saw the photo on Heat Stress. I really don't think it's the lights though. I had a good 24" from lights to tops with really good air circulation. Before I lost power, I hadn't seen the burnt edges. The room hit at least 100 degrees before I discovered the problem, maybe 110. It's been so many years since my last grow, I really couldn't say for sure if I'd get a burn like that just from room temperature of 100+ for 12 hours or was my feeding off too. Thanks for the input.