Check your "facts":
https://www.youtube.com/watch?v=yj-9PqKs6o0
I'd go DIY white leds + red and maybe blue.
Im seriously considering the diy route too, and have been researching for 15 hours the last few days. Holy shit its a jungle out there, i knew jack shit about electronics or diy leds before starting my research, but feel im getting closer.
In regards to spectrum, i think maybe copying the spectrum of the GN units or some other well respected LEDs?
Or going with a simpler COB diy could make it easier, i have seen pretty good stuff around the webs from diy COBs
Well probably a thread on its own, so ill stop here
