Air Cooled Reflector and Distance.

Say you have a 400w air cooled reflector, the glass is cool to the touch and not warm, theoretically how close can you get it to your plants? I can put it right up to them with no heat but then am I giving them to much light intensity?

Great question and one that I also asked recently in these forums. Long story short, I have determined that my current grow's distance to air-cooled refelctor is about 6 inches.

This is still 12 inches less than the recommendeI had 18-24 inches.

Good luck....

thank you.

Its fine to have it within 8-10 inches, but once you are nearing the end of flowering the intensity of the light hinders terpene production and you end up with a plant that tastes average. If you give it some distance at the end of flowering however, thats when you get the nice smells/flavors that aren't so common such as berry.

Info is from an article I read by DJ Short, by the way.