Oh forgot to ask, your temps dropping to lower 60s... is that from a lights out cycle ( running at 18/6 ) or do you run 24/0 and it dips that low? And last question, if temps are in the 70's is growth good? Sorry for all the direct questions I am just frustrated I spent so much on LEDs and now have winter problems and have to buy another system and before I do want to make sure I solve my temp issues if I go with the 315, and thought I have read lots of online reports of them don't have conclusive answers so I wanted to reach out to someone who was growing with the same light in the same size room from another colder winter part of the country. Thanks, again!