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So that's what is messing me up - Can Vero29 be runned with 36 vF Definitely i could run CXA3070, but V29? This driver: http://www.ebay.com/itm/111430422865?var=410417333487 On picture it says 38V, descriptions says 36V... Cheapest one... And second choice, PFC , 88% efc...

So my finalisation - Running V29 with 1.4A, can they be run at 36V, specs show lowest 2.1A 38vF...? Other veros will be runned with MW LPC-60-1400 (easy available for now, so that's why, can't take them for all cobs) Next i will have 4 CXA's - wich will be runned with stock chinese PFC 36V...

1.2-1.4A would be cool, to drive all four!

And for running 4 pieces or v29 from single driver - is there any chance?

LIFE IS CROP!

LED's are religious thing... I've made some of my friends to agreed to join in this cult. HAHA :)))

hehe :)) there is @Bueno Time , who grew with two CXA 3050 - yielded ~1+gpw :))) only with ~100W :p And my feeling is, that in next five years it will be sooo cheap to buy AB 3070 bins, that easily i could run them at 350mA, and so i have 50% PAR light, not heat! imagine that!

https://www.rollitup.org/t/diy-led-grow-lights-with-cree-cxa3070-cobs-and-cpu-coolers.805681/page-2#post-10389272 and there are more... Or take a look at @captainmorgan , you troll :)) https://www.rollitup.org/t/another-cree-cxa3070-diy-thread.824364/page-21#post-11005394

How do you stick them to COB? :eyesmoke:

How do y'all feel about this? Will work for single 29? 39V + 1500mA +/- 5% Eff: 90% Link: http://www.ebay.com/itm/400710082450

@x.man how it's going?

Thanks a lot, dude! Just do it! Doing these grows, whatever in size, they learn you many things, and concept of this beautiful plant! Yess, your's looks swollen up nicely! :))

Yea, 60-70G's :D

Salmo - wich driver are you using for driving cobs?

Can you draw it, add to my painting :D I have problems with understanding, i understand, that you tought of blowing thru fins. I'm just making these lamps for some of my friends too, and i think they want to go classic way, too...

Man, good idea! But i'm going to be stealth...

Yes, they are positioned at the moment lower, but i believe, if i don't have a dimmer, i will just use scrog, two hempies, 105w of V29.. and adjust if needed to max height, almost to ceilings, there will be: 6inches pots - 10 inches stems/scrog - 12 inches cannopy so - 28" all plant... 50inches...

I believe you @AquariusPanta i'l have 8-20" space... i have feeling that it is ok, too... And i feel that 60centimeters are too far... i allready have 3500k v29

125cm height... 2x 2galon buckets...

This container is definitely too big... Container height: 40" Height from this container to lights - 16" Ok, could try to do 125cm... or 50" @AquariusPanta - Yes, Google Sketchup!