@ roadsidevendor I would take out the 2700k until day 21 let them get str8 6500k. This is how I did it first 21 days 6500k and 5000k, day 21 went to 50/50 2700k 6500k, until got good bud sites I would say around day 40 and then went 90% 2700k 10% 6500k until the end. And as how close you can keep your lights NC, and them hit the nail on the head. No closer then an inch. With the seedlings I kept mine at 2-3 inch until they got to there 3rd set of leaves. Then droped it to a inch the rest of the way.