Help with how many cobs for small closet grow

sixspeedv

Well-Known Member
I have a 32 inches long by 20 inch deep by 63 inch tall tent in my closet. Looking to DIY 4-5 cobs on CPU heat sinks with fans and mount them to a rail. I have a few questions.

Was thinking 4 COBs evenly spaced every 8 inches across the middle or go with 5 and do an alternating pattern of cobs? That should be plenty of light for my small space right?" I would prefer to keep them less intense due to space and be able to get plants closer to lights as well. I won't be doing more than 2 plants at a time.

Was leaning towards cxb3070s and 1 driver for the COBs and 1 for the fans. Any recommendations on drivers for what I'm looking to build? If you have better ideas on how many cobs or how I should go about this please feel free.

Thanks
 

Waiks

Well-Known Member
4 will be plenty :)
I run pretty much what you just stated in a 36" x 20" x 62" tent.

Check out my thread. Pics and part list included!

rollitup.org/t/let-the-healing-begin-first-grow-diy-cxb3070.887145/page-2
 

sixspeedv

Well-Known Member
Thanks Waiks. I subbed to that for reference. I like the frame you built and looks like you have the driver outside the tent as well. Great thinking.
 

Waiks

Well-Known Member
Thanks for following :)
Yeah the driver puts out a good amount of heat.
I must mention though I added a 2x4 in between the rails for support, it's not in any pics. The chains made it bow.
 

sixspeedv

Well-Known Member
Thanks for following :)
Yeah the driver puts out a good amount of heat.
I must mention though I added a 2x4 in between the rails for support, it's not in any pics. The chains made it bow.
Do you think if I went with a single rail setup with 4 of them in a row all about 8 inches apart it would cover the entire canopy? I like your setup but just feel like I'd want 2 more in the center of the frames. Just curious what your opinion is on the layout.
 

Waiks

Well-Known Member
I have never had a single cob in the tent to see the coverage myself, but most people are saying one cxb3070 @1.4a will cover 1.5sq ft nicely.
I think 4 in only 3 ft is overkill.

Tim Fox scrogged in the same space with 2 cobs on one rail, and finished with 5 zips dry.

http://rollitup.org/t/harvest-pictures-grown-under-2-cxa3070s.886228/
http://rollitup.org/t/the-foxs-second-led-grow-under-cxa3070.878562/page-6

After that run, he upgraded to 4 cobs. Pretty much same layout as I'm running now.

http://rollitup.org/t/growing-in-the-the-wardrobe-with-the-old-man.888848/
That run is current, follow his too! :D
 
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