Another Cree CXA3070 DIY Thread

[Cococola36]

I love this CK,yields are great and it came out at 25.7% THC when I had it tested. These CXA's are the real deal,watt for watt this yield will blow away any previous one Ive had by a large margin and I've been running it for at least 1 1/2 years and yes the bottom buds are solid. I plan on cutting the large stuff on top and giving the bottom half some more time,these big buds block a lot of light.

Wow now I really wish I kept my ck lol, but i buy beans all the time, almost grabbed more ck this last "halloweed" promo but got chocoloco for my wife lol. Anyways back on the cxa topic, you pulled 514 grams off of 388 watts draw, yea I'd say they are the real deal. obviously you have yourself a winner pheno on all accounts to boot.. but that kind of yield I'd have to get an elbow a plant on my current run with (3) 860 watt cmh plus red led ufo supplements hahahaha not gonna happen lol maybe more like 9-10 zips per max

 

[Cococola36]

I do have a spare 5x5ft area...I'm thinking 9 cxa 3070 should easily do the trick??

 

[captainmorgan]

I do have a spare 5x5ft area...I'm thinking 9 cxa 3070 should easily do the trick??

You would have to drive 9 harder than mine at 1400 ma to get the job done in a 5x5.

 

[Cococola36]

You would have to drive 9 harder than mine at 1400 ma to get the job done in a 5x5.

Ok thanks for the info Cap, don't want to clog your thread up....I don't want to run too much harder than 1400 ma if at all so maybe 12 > 4 rows of 3 cxa or vice versa

 

[captainmorgan]

Ok thanks for the info Cap, don't want to clog your thread up....I don't want to run too much harder than 1400 ma if at all so maybe 12 > 4 rows of 3 cxa or vice versa

That's what this thread is for. That total of 388 watts is at 1400 ma and includes the drivers,fan PSU and the cooler fans for 6 CXA 3070 Z4 3000k COBs. It's in a 11.25 sq/ft cabinet so that's like 34.5 watts a sq/ft.

 

[tenthirty]

5X5=25x30watts sq ft=750 watts\60 watts per 1400ma=12.5 3070's
So you can do with 12 or 13 units.

 

[indianajones]

5x5 with 9 cxas would mean each cxa occupies a 20"x20" space.

 

[Dloomis514]

5x5 with 9 cxas would mean each cxa occupies a 20"x20" space.

I am missing your point. Are you saying nine isn't Enuf?

 

[medicinehuman]

I am missing your point. Are you saying nine isn't Enuf?

Not enough for good coverage, 12 or 13 like Cap say's.

 

[indianajones]

If you want to run 35w emittance per square foot, you would use 16 cxa 3070 at 52w

 

[captainmorgan]

If you want to run 35w emittance per square foot, you would use 16 cxa 3070 at 52w

I'm counting the drivers,fan PSU and cooler fans so it would be between 12 to 13 at 1400 ma for the Z4's,might be able to use less with AB's.

 

[WOBBLESAUCE]

Any thoughts?

http://www.amazon.com/gp/product/B00E4GY0FC/ref=s9_simh_gw_p199_d5_i2?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=desktop-2&pf_rd_r=1A62A3BFKAMQP29SX667&pf_rd_t=36701&pf_rd_p=1935661402&pf_rd_i=desktop

 

[Dloomis514]

Any thoughts?

http://www.amazon.com/gp/product/B00E4GY0FC/ref=s9_simh_gw_p199_d5_i2?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=desktop-2&pf_rd_r=1A62A3BFKAMQP29SX667&pf_rd_t=36701&pf_rd_p=1935661402&pf_rd_i=desktop

• Cooling power: Qcmax 58-65W

Might be enuf for some COBs

 

[PurpleBuz]

Any thoughts?

http://www.amazon.com/gp/product/B00E4GY0FC/ref=s9_simh_gw_p199_d5_i2?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=desktop-2&pf_rd_r=1A62A3BFKAMQP29SX667&pf_rd_t=36701&pf_rd_p=1935661402&pf_rd_i=desktop

considering that you still need a heatsink and maybe a fan on the hot side to get rid of the heat (all it does is move heat from one side to the other side.) how is this more usefull than a fat slug of copper or aluminum ?

 

[Dloomis514]

considering that you still need a heatsink and maybe a fan on the hot side to get rid of the heat (all it does is move heat from one side to the other side.) how is this more usefull than a fat slug of copper or aluminum ?

Those are miniature refrigerators that dissipate heat by direct cooling. Like sitting on an ice cube.

 

[PurpleBuz]

Those are miniature refrigerators that dissipate heat by direct cooling. Like sitting on an ice cube.

I understand that, but the heat still has to be removed from the area.

 

[guod]

I understand that, but the heat still has to be removed from the area.

put a next one on it....sololved

the magic of
these pumps
12V 5.8A

they suck more than your cob

 

[PurpleBuz]

put a next one on it....sololved

the magic of
these pumps
12V 5.8A

they suck more than your cob

ya lost me on the "next one"

 

[epicfail]

Those are peltier plates one side gets hot the other gets cold, you still need to put a heatsink on the hot side.

What @goud means by "put a next one on it" is use another plate to cool the hot side, its a joke can't you see the winky face?

​

 

[guod]

nice read...
Peltier Basics
http://www.overclockers.com/peltier-basics/
mostly used in test-systems for setting the right temps.
http://www.instrumentsystems.com/fileadmin/editors/downloads/Products/LED-850_e.pdf