The expensive ones do well, for small areas. I said that. But they are just that, too expensive. I wouldnt pay $1000 for a 600w hps either. I also said compared to hps they are not worth it. I saw the difference with my own eyes. I cant remember the brand all that shit. I do know they were quad band ufos, the company that made a certain color I dont know if it was the white or blues was bridgelux. But maybe Im wrong, and if I am you will get around an ounce dry from each of those autos, because thats what people that are using hps are getting from them, sometimes twice that. Considering you are using 120 watts with 4 plants, that would be amazing. Hell thats supposedly comparable to a 600watt hps so you should be fine. I have seen just as many LED grows as you have Im sure. I did my whole research stint on them, and bought some just to try out. In the end no matter what you say, or anyone else for that matter, hps wins in the end. Though I expect LED tech to get much better, and come down in price, or it will just phase out. No one wants to pay that much for performance when better performance can be achieved with lighting that costs half that. Its just not consumer friendly at this point. I am still using my LEDs, but for veg. I wouldnt waste my time flowering with them again. The grows I see doing good have a good 600 watts to 1000 watts crammed in a small area. And they are not able to get the yield that you can get with hps because of light spread and penetration. Less light spread, smaller possible canopy size, less penetration, smaller, less dense, meaning lighter buds. Potency is fine, just not worth the expense or risk for such a minimal yield. Prove me wrong. I would love it. I like learning new things. But having gone from forum to forum myself, searching youtube, and seeing several LED grows myself, they just cant compare to hps, even watt for watt. I am trying to help you, you dont have to be a smart ass. I am trying to save you time, and not have you waste it on the LEDs. I understand you are probably mad at yourself for buying such an expensive piece of shit. I was too. Dont feel bad. If LED was so good at a low wattage, dont you thing all of the big medical growers would have LEDs across their rooms and not hps, saving themselves money on cooling and ventilation. Hell if they worked as good as they say, everyone could run a thousand watt LED system, and pull in several pounds easy, from that one light. Dont fuck around and act like you know all this shit. I have been there, done that. LEDs, at this point, at their price, are SHIT. The best one are homemade any way. Even the top companies dont use the best LEDs available on the market. If your going to use LED you might as well do your research on individual diodes. You will need at least 10 or more colors, red, far red, uv, different blues, orange, white. All that good shit. I do know what Im talking about, dont think Im one of those idiots who doesnt put time into what they do.