[Zambeza Seeds]

Thats some nice installation you got there.   Good luck!

[Dex]

I think because I'm in a colder area it's helpful to the cobs I put my In take coming with cool air coming down the tent and I have a fan to keep spinning the cool air plus the cobs fans do a great job my sinks has been pretty cold to touch at lights on..

And im same with soil forest I'm having better lookers with less work in the watering section

[symbol 22]

As promised

Temps of cobs running no fan
 20170502_183613.jpg   53.18KB   0 downloads
Below with fan on after 10 min
 20170502_183906.jpg   44.23KB   0 downloads
Below temp above plants
 20170502_183640.jpg   40KB   0 downloads
This does rise to 26.5-27
Tbh @Forest I run extraction 24-7 if temps go above 26°c they kick in so that being said if the fans on cobs or not temps change by next to nothing. Tbh I probably don't need to run the fan my heat sinks are huge and I believe they can cope that being said fans circulation too so it's staying on. Ive noticed big difference already between cobs and led. cob plants are really going for it in flower now il do update on my page Friday show ya again both tents bro

Edited by symbol 22, 02 May 2017 - 05:57 PM.

[Forest]

Those temps are sweet m8. the fan makes a good difference but 50c is OK working temp

Thanks for that . I'll get a few passives to play with I think

My canopy is not as low as 23c . Growing in small spaces is problematic for temp's I guess

[Forest]

Thats some nice installation you got there. Good luck!

Thank you .

[Forest]

few pics  they two biggest one are at last touching the screens  , they both have very thick stems, so thick i cant even bend them, which  is a good thing the plants will have  stuff stored for  flowering, another benefit of cobs me thinks   

 

 

the plant at the side are ones that are not wanted   so they stay and live in poor conditions  and get a few experimental feedings 

 

[2scoops]

Do you not use lenses with your LED builds @Forest ? i ask cus i seen a few 60, 90 and 120 angled lenses on FT which is what they generally use, pretty cheap too, i saw them the other day, in`t it said a mixture of diff angled lenses on the LED light should produce more, you can have them more angled for better coverage or lesser for better penetration into canopy, either that or other way around i forgot tbh, but did read using lenses on the LED modules helps quite some in growing depo.

 

Good luck with this grow as well by the way, they looking sound those plants m8.

[Forest]

from what i read jim: you use optics when you are in a highbay situation or dont have mylar/walls ,  ill have  a look on ft to see which they are , you aim roughly  for 36w per square foot to be optimun and that is easy achievable  for us with out optics ,id like to play with some tho , you need a posh light meter i think to see what they will do ,

 

there isnt a penetration problem with cobs, they chuck silly amounts of light down more than a hid watt for watt, the lacking penetration  has come  from   the muti chip panels 

[2scoops]

from what i read jim: you use optics when you are in a highbay situation or dont have mylar/walls ,  ill have  a look on ft to see which they are , you aim roughly  for 36w per square foot to be optimun and that is easy achievable  for us with out optics ,id like to play with some tho , you need a posh light meter i think to see what they will do ,

 

there isnt a penetration problem with cobs, they chuck silly amounts of light down more than a hid watt for watt, the lacking penetration  has come  from   the muti chip panels 

Yes cool i get that. I also read using the lenses that look like round flying saucer type things helps with alot more penetration, but by angling them more direct you lose light coverage of your surface area, which i can also get my head around, i`ll see if i can find it anyhow and the lense link at ft.

[2scoops]

I read a bit about angling them to magnify PAR here but iv`e also read it elsewhere and more in depth. Anyhow theirs loadsa different lenses and stuff here mate at fair prices if their any good that is for cree, i did see more at 60, 90 and 120 angles, but i cant seem to find the fekkers now.