I grow in 2-2x2's with the 135W QB288 V1's and im extremely happy with them. Ive had them about 7 months and ive been able to put out a few crops. i measure my harvests in pint jars, which are usually around 18grams. The first run i got 7 jars, about 1gpw considering these 135's are actually 120 right? The second run i got 9 jars, well over a gpw by any measure. My current lights are both 3000k. What id like to know to improve my harvests is, how can i upgrade my lights to improve the spectrum. I assume i need something lower for my flowering tent, i saw the red add ons but i dont like that. Would the QB324 be better for my flowering tent? its seems really inefficient compared to the samsungs? im definetly going to upgrade my veg tent to the qb288 V2. I really wish there was a version of the V2 with maybe some cree reds mixed in. Im also trying to figure how to actively cool these things because they got hot as fuck. im thinking of switching to the new chilled pucks.