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That would be $2800.00 to upgrade my setup......ouch... I'm running 20 cxa's now at 30w a sq ft.

What is it going to cost you by the time it is all said and done? You're on a 3x3 correct? -Thanks......

Me too at about the same levels, Been doing it for some time now.

I don't know the point of diminishing returns, but I believe that you would get better uniformity having more point sources with the 3070's thus better harvests. -2 penc.

You have to catch the mites in veg, If they get into the flower room your screwed!! Ouch!!

Why struggle! http://www.4pcb.com/ There are lots of places out there that will make your pc board for cheep. Just my 2 penc.

SDS, Do you have the eagle files to go with this? The PC poard should be less than 10 bucks from china........Have a few made and give them to your friends. ;-)

At this point I'm doing 14/10 with good results though there is a little elongation of the internodes.

The typhoon has 4 timers in it. What I do is vary the start time on the 12/12 and the end time is 8:00am I set up the second timer it start at 7:58 am and stop at 8:10 am. I run the 12/12 to 13:45/10:15. Hope that helps.

If it was me......I would get a typhoon led controller and set it up to ramp up in the mornings and ramp down at night.

If your a really good grower it should be ok to start. You'll be growing shade adapted plants for sure. I think that I am at 11.9 or so and it works pretty well for me. After thinking about it....... I think to be safe add one more cob. That will work well.

Well I was looking for something else and I just have to reply to my own comment. The outcome of going to CXA3070 has done very very well. It works!!!

I understand that you need to look for the current you want to run at (E.G. 700mA) and you need to add the voltages you're running in series (E.G 30v+30v=60v). Yes! But for input do you just look for anything that's VAC? Does the number not matter? No, VAC means volts alternating current...

Different formula. Input is ac. http://www.rapidtables.com/convert/electric/Amp_to_Watt.htm

Burst my bubble!! ;-)

Now this is kinda interesting. http://www.ledsmagazine.com/articles/2015/05/leds-magazine-highlights-from-lightfair-cree-video.html?cmpid=EnlLEDsMay202015&eid=289705212&bid=1076984

A single edged razor blade used as a spatula.

For us lazy stoners. http://www.boostled.com/product_p/typhon.htm

This is exactly why I use the Alpine 11+ cpu coolers. The spacing can be changed at will!!

http://en.wikipedia.org/wiki/Second_law_of_thermodynamics That should be clear as mud;-)