OK, for the last year I've been doing Elite Agros' over 3x6 sog. We'll use blue dream for this example. 40w sq ft.
The blue dream would be pretty well finished at 60 days.
I'm almost finished with my second harvest under the 3070's at 58 days and they look like they could go for another week...
Mine draw about 60 w each and about 2 w for each ps for fans, 8 fans per ps. (killowatt readings)
16 3070's = 960w (meanwell drivers at 1400ma)
2 fan psu's= 4w
over a 6x6= 26.77 w sq ft.
Cap'in
I just ordered.
1 each driver.
http://www.rapidled.com/mean-well-lpc-35-700-constant-current-driver/
8 each 730 leds.
http://shop.stevesleds.com/EpiLEDs-Hyper-Far-Red-3-Watt-LEDs-EpiFR3W.htm
I was running Elite Agro bulbs and it had the 730 spike.
When I switched to the 3070, it looks...
Running a perpetual will definitely get your growing skills in order fast.
I've been doing that for about 4 or 5 years now. (ala Al B. Fuct)
For a 5' long heat sink 4 3070s @1400ma or 6 at 1050ma with 2 fans for redundancy would be the ticket IMHO.
All my 3000k are ab and my 4000k are ad bins. Had to order 20 each and wait for a month.
I suppose that you can't be in a hurry. (proper planning prevents piss poor performance)
Just for giggles, I'm going to see if I can back order the highest bin in the data sheet.......
I'm picky about...
IMHO,
The cheapest led would be the CXA at >$100 per 60 watts more or less. (not counting labor)
That would be 1.6 dollars a watt.
A gavita would come in at 50 cents a watt, again more or less.(not counting bulb replacment)
The difference is I can run my trays as 27 watts a sq foot vs 50 watts...