I tried a 3x3 on my back porch and found that the temp variations outside made it impossible to manage the tent (condensation on the walls kept humidity down when it was cold outside and the 3x3 is just too small). So, I decided to repurpose a server closet with a dedicated 1-ton Fujitsu Mini-split that made climate control a breeze. I sealed the room up further, created a 4" pass-through with flapper so air from the (climate controlled) room that's on the other side of that wall, then I put an AC Infinity 4" (later went to 6") Cloud-Line system on to pull exhaust out if heat or humidity became an issue. The lights on either side are Home Depot, "Commercial Electric High-bay" 5000k, 180w lights. In the middle is the Sun Raise QB2000 to get more blue in. All were dimmed down to maybe 20%. I was using an Android PPFD app to set them. The buckets are a custom system using the "air-lift-water-pump" concept to bring nutrient water up from the bucket, then some of that water is sent out to drippers, into the 3" net-pots and the excess was pumped to the next bucket, causing a slow recirculation (including with an added reservoir bucket.)