lots of truth in this except for the fact that blackstar doesnt use 3w leds, they use 3w driven at 1w for longevity they still get better penetration out of the 3w than 1w even though they are being driven to 1w, having done some more math, your led really isnt that much more expensive than the blackstars if you look at actual wattage used because you cant compare a 240 blackstar to one of these 180w lights they are stronger, not by much but they are stronger. If i get another panel im gonna grab one of these for a test run, but im really probably gonna be staying with kessil. If you know the actual tech thats in the kessil you would know its not overpriced, i had family that used to work for dicon years ago, this technology has been around longer than the leds we use in our panels, its stronger light uses less power, yea they are still a little expensive but you cant say overpriced for what they do. Are they expensive yes, do they produce results absofuckinlutely they do, 2 of em made my blackstar look like a kiddy toy to put it that way. 3 of the h150's i KNOW would beat out one of these 180's. I ended up pulling a lil over a half pound off of 3 of them with an extreme spider mite and gnat infestation along with a table that was screened way to late and actually had nug cut off that could have developed more and an overpacked table. BS works like you said but i think yeild could be better, quality though i got no complaints.