$1500 for a 2x4 area?Those lights cover a 2x4 area at about 24” above the canopy. With them mounted to your ceiling you’re probably getting like 300 ppfd out of them.
It should work that way but it doesn't, or at least not always. I've had better phenos out of $25 packs of nirvana than my buddy got out of $280 & $320 packs from THseeds and sensi seeds back in early 2000s.No but I’m thinking you get better genetics
FactsThere 5ft but the plants don’t stretch for them