Hey guys. I'm doing a grow with my 600w hps and autoflowering plants (see sig) Just trying to judge the distance of the hps from the plants for seedling stage and need clarification. Is it the light intensity that is harmful to seedlings or just the temps of a closer bulb? My temps are 72 degrees when the light is 36 inches and 20 inches away but the light intensity is obviously much higher when the light is closer. What distance should it be at for seedling stage?!! +rep for answers.