My only comment is that you measured the yield by the number of plants instead of by the wattage of light. And i'd say if you yielded 8oz from 2-400 watters, in an area of 32 square feet, you did pretty well!

BTW, you don't measure the spectrum by looking at the light with your human eyes. You need a spectrometer (sp?).
herbie the love bud Reviewed by herbie the love bud on . One box, two box, veg box, bloom box So this is my conversion from soil to Hydro. I have ran 8 cycles in soil, perpetual SOG with a harvest every 7 weeks. Yield was not what I expected and more than likely due to PH issues (now that I have a PH pen). Yield was approx 8oz for 80 plants 2 week veg and 7 week flower. Very dissapointing and demotivating. Two hours of watering every three days turned me away and I tired of it all. Did some talking with the local hydro store and decided to read a little and get some ideas for a Rating: 5