well said and thanks for droppin the coin to do this this is a really nice comparison i like how you've worked the variables out of it with identical tents and fans and whatnot. Strains as well. should help take the wind out of teh sails of the disbelievers. I honestly think the main problem is people try to compare way too low of a a wattage of light to a HPS. In my experience it falls somewhere between 1/2-2/3 the wattage draw of an HPS to equal what you would get off of said HPS. When you compare watt for watt actual draw HPS to LED there just isnt a comparison anymore the LED's just decimate. Unfortunately as you shown earlier with the prices the blackstar is really the only one anywhere near the affordable range and its still about a grand to get 2 of em to equal 600 watt draw, price is comn down though, and honestly the light pays for itself just like any other, but im about super quality not quanity. Not only that LED's are so much safer for us, no more fires in the grow room. Too many advantages to ignore. The more that we buy the further the price will come down. Im on the fence about going back because i need some pretty large yields now to support family, and the upfront cost is gettin me a bit, so i may do a few quick HPS runs for some $ to stack up and switch back again. The only thing holding me back from goin large scale with LED is cost right now. If i did go large scale though I would end up going with kessils, they are so modular its ridiculous. So much fun stuff out there.
Going to be watching this closely +rep man