Cxb3590 ppfd 5x5' ???

New to the Cxb3590 tech, learned a bit in a couple days. Having a hard time grasping a few things.
Cxb3590 is the plan, layout of light pattern I'm unsure of. Room maxed out 10x 20' long generally just use a 5x15' area SCROG. Left over room to get around. So if anyone can help the break down to 5x5'. Layout of lights and amount of cxb3590's to be in the neighborhood of 800-900 ppfd. What drivers makes this possible still being efficient?
5x5' (12) cxb3590 / 3500k cd @ 1050ma on (2) HLG 240h-c
61% efficient 35w per/cob
240w/256PAR w
Took notes on from Growmau5
So for everyone that this knowledge is second nature be patient please. Never build a light always bought plugged in a played. So maybe I missed something on figuring this PPFD for my sq/ft for grow area myself. I know the driver ma will have to be bumped up to a 1400 or higher. How higher on ma and how can I stay somewhat efficient reaching 800+ in the 5x5'
Thanks again

12 COBs at 1050 ma in a 5x5 is like 464 PPFD

I'm running 1 COB per square foot at 800 ma for 740 PPFD

16 x cxb3590 36v @ 1.4A should put you at ~850 ppfd. 4x hlg185 1400s will run that. Per 5x5 space.

~56% efficiency.

One COB per sq/ft at 1050 ma would be 966 PPFD at 60% efficiency.

captainmorgan said:

12 COBs at 1050 ma in a 5x5 is like 464 PPFD

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captainmorgan said:

One COB per sq/ft at 1050 ma would be 966 PPFD at 60% efficiency.

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Thanks

Mr. Candiano said:

Thanks

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Only 9 COBS x $42 each = $378 plus difference in drivers. Nifty.

captainmorgan said:

One COB per sq/ft at 1050 ma would be 966 PPFD at 60% efficiency.

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just dbbl checking my own thought process ; if one had 1 cob (3590 ) per sq/ft running @ 1400
then the sweet spot would be to dim back 10% -15% ? ?

am I starting to get some of this now ?

Fastslappy said:

just dbbl checking my own thought process ; if one had 1 cob (3590 ) per sq/ft running @ 1400
then the sweet spot would be to dim back 10% -15% ? ?

am I starting to get some of this now ?

Click to expand...

It all depends on your grow style and how big your plants are for what you need. I've been able to get in the 2 GPW range with 540 PPFD on a scrog.

captainmorgan said:

It all depends on your grow style and how big your plants are for what you need. I've been able to get in the 2 GPW range with 540 PPFD on a scrog.

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That's what I'm talking about^ I'd still like to stay at 800+. Building this light system will be fun. I scrog pretty damn good. A whole lot of years experimenting and messing up. Found my groove a few years ago. What dimmer would you fellas recommend?

i did 100k ohm for each of my 1050's but you could tie them together and use a 50k

captainmorgan said:

It all depends on your grow style and how big your plants are for what you need. I've been able to get in the 2 GPW range with 540 PPFD on a scrog.

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I like the tall sativa stuff , donkey dicks .
we'll see how it drops , I sure if I've over done it
those excess bars will go over more plants Or i just turn em down sum
i'm after quality over quantity
on the last mars2 run of 2+k from the wall my smallest gain was the frostest & I still have some left , the high weight pull is smoked memories
ThanX Capt'morgan !

http://www.environmental-expert.com/products/brand-apogee
This would be nice to have in the garden hooked to a laptop or stationary monitor outside the room. What ya think?

captainmorgan said:

One COB per sq/ft at 1050 ma would be 966 PPFD at 60% efficiency.

Click to expand...

can you please share how to calculate ppfd? I know that I've read it before, I'm having a tough time finding it now though.
thanks in advance.

is 12 cxb3590 3500k cd @ 1050ma over a 4x4 = 536 ppfd? I was just trying to do the math, but I don't completely understand it.