I veg in a 3x3 with a qb288 4000k 240watt kit(AliExpress boards) dimmed to 200 watts and growth is explosive ...have the panels at about 18-20inches Sent from my Nokia 4.2 using Tapatalk
Nope...get leaf canoeing and stress if turned up any higher..using the lux meter that's the sweet spot for me and not a guess Sent from my Nokia 4.2 using Tapatalk
Yes 2 samsung lm301b 4000k panels running off of an HLG-240-48a unit dimmed to 200 watts Sent from my Nokia 4.2 using Tapatalk
Go with the newer Samsung lm301H, only a couple more bucks. This 240w panel would be beast in a 3x3.. 240W LED Quantum Board 288 Samsung v3 lm301h - BUDDYLED
On the 1of the pots,on the hlg 240h 48ab driver, my boards draw 280w from wall if I adjust Them, I keep it running at 220w veg and 280w flower
I personally run 4 qb120 in my 3x3 veg without a single issue. Typically I dim them a hair to begin with then crank them up once plant is adjusted. I've even flowered in this setup a couple of times, yields aren't great, but it'll do it