twelve months ago when researching setups I came across LED tech, I was dubious with all the claims and baffled by the jargon. I ended up parting with some hard earnd cash for two mod 6 panels. I have not done anything with any other lights so its hard to compare but I managed to pull over 320g dry of my first grow with 4 autos. For me this was perfect and whatever the panel is doing with regards to spectrum's it seems to work mighty fine.
My only concern with the lights is if Grow northern were to vanish how would i replace the mods with the same part.
One other thing, does anyone know how they perform with photo variety's? any pointers to a good grow diary?