I have EXTENSIVELY researched growing with LED's and this is going to be my setup (open to thoughts...):

1200 LED array
-420nm,470nm,640nm,660nm,730nm
-Use 730nm to quickly convert Phytochrome-FR to Phytochrome-R which naturally takes 12 hours (hence the 12 hour light cycle). By doing this we can flower with shorter nights, meaning flowering with longer days, meaning more energy, and hopefully more bud!:thumbsup:
-vegetation=2:1 Blue:Red, flowering= 7:2 Red:Blue
-PCB's made by ExpressPCB
-Driven by 8 Maxim MAX6971 16-Port, 36V Constant-Current LED Drivers
-going to overdrive LED's at 55mA:rastasmoke:, but also creating up an astable oscillator circuit to pulse the LED's at about 20kHz, and have the duty cycle=10%, 1ms on-9ms off.
-UV-B lamps for even more serious bud:jointsmile:
-UV-C lamps disinfecting water supply
-Have an additional HPS light for flowering ONLY
-Use Dry Ice for CO2 enrichment and temperature control-AND only costs 60 cents a day!!(and when you CO2 enrich, you dont have to have ventilation[only circulation])

I do have a couple of questions though. Can you string different color LED's in a series. For example a series of 17 LED's 10 red and 7 blue. I have read you can but im not sure. And my friend is taking care of nutrition, he knows his stuff.