Love to see these kind of comparitive tests m8 so nice work!
Be great if is could be a test of 400w or so as is the average power everyone seems to use. I would suspect that yields aint great for 3 plants under 180w or 125w so its a little bit of which is the best at poor light levels which may not translate into the bigger options neccassarily.
Hope that dont sound negative, I just mean it be great if this can be tried over much higher wattages and the differences compared in outlay costs and running costs etc as led could certianly be a future for many growers once they are affordable at higher ends.
what wattage do the leds go up to nowadays?
Keep it up