I will often turn my red lights off for a couple days before Harvest. There's some good research on that with lumigrow LEDs. The research shows that increases terpene production I can't remember if it increases THC, but that's probably why old school Growers have gone with the darkness before Harvest.Ok this should be my last question I should have to ask before harvesting. I’ve read some people turn out the light a few days before harvest. Is that something I should do or does it make a difference?