ok its my turn to chime in! Im gonna keep it short and simple, I just pulled 9 plus zips ooff of 1 girl, under one led unit. the buds were as frosty as anything Ive seen hps or mh included. Everytime I harvest I get better results. My point being if your not happy with a half pound plant under 327 actual pull led watts then show me the downfall of led grows.
oh and i willl be posting results of a 3x4 scrog under a blackstar 900 when harvest comes, cant wait for those numbers.
dont feel bad about your purchase, alot of it also has to do with the quality of your entire garden as a working unit,
"your garden is only as good as its grower"
k11ng