You have no idea what you are talking about. I am have been using 2-120W LED ( cost of $125 each ) panels mixed blue and red for the past 3.5 months and am very happy with the results, especially the veg stage. LEDs have amazing penetrating ability and bottoms of my plants are just as healthy as tops. Also, with LEDs plants internodal spacing is very short. I do enhance my LEDs with floros, but still these lights kick butt when you take into consideration that my electric bill has increased by a measly $40 a month ( what were you saying about cost effectiveness of MH and HPS? ), I have no heat issues, no need for the additional expense of ballasts, life expectancy of LEDs is 50,000 hours, and panels came with 3 year warranty. Oh, and I had a panel fall from three feet above floor and survive, what would happen to your HPS or MH? Whereas I agree this technology needs to and I predict will be fine tuned for maximum performance, as I had very little cash to start with, and low income to bring in first harvest, I am extremely satisfied with the results. Here are some pics.
View attachment 1046770 these are tow blueberry, with an MK ultra in the middle. This pic was at three weeks from seed.
View attachment 1046772 Carmelicious about two weeks into flower. For my flowering room I have two double tube floros, 1-120W LED panel, and two 14W red LED panels.
View attachment 1046773 I believe this pic of MK ultra is about 4 weeks from seed. Mk really liked the LEDs and grew at amazing rate. Though I was growing the blueberries and Mk to follow the Carmelicious in my flowering room, MK got so big so fast that I decided to put her in the ground to finish outdoors. I planted her bucket and all to prevent transplant shock. Here she is, and she began showing preflowers at only three weeks.
View attachment 1046780