First time grower here, I have a 400 HPS light which is 16 inches above the tops of my plants. Temperature is at about 80-90 when lights are on and 67-70 when lights are off. I have very good ventilation in my growroom which is encased with mylar, and there is no glass plate on my reflector. I have 6 plants under the light, sorry no pics.
Please post how far away your lights are so i can get an understanding of the min-max range of the light distance.
Please post how far away your lights are so i can get an understanding of the min-max range of the light distance.