I want a certain PPFD. What do I need to get there?

G

George2324

Well-Known Member
The ppfd calculations are surely the maximum that the cob can output... however every inch you move further away from the cob that ppfd will deminish and losses on walls even if reflective will be adding up

So if you want 1500 ppfd wouldn't you have to aim for like 2000 ppfd on the calc
 
rkymtnman

rkymtnman

Well-Known Member
George2324 said:
The ppfd calculations are surely the maximum that the cob can output... however every inch you move further away from the cob that ppfd will deminish and losses on walls even if reflective will be adding up

So if you want 1500 ppfd wouldn't you have to aim for like 2000 ppfd on the calc
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i don't know about you , but doesn't 48 cobs in 16 sq ft seem like way, way, way overkill?

i'm not sure i'm ready to make that big of an investment just yet. my LEC might have to make do for another year or so
 
rkymtnman

rkymtnman

Well-Known Member
so how about QB's? what would 4 boards driven fairly hard be like in 12 sq ft? any rough guesses on ppfd or is there a calculator for that too?
 
MeGaKiLlErMaN

MeGaKiLlErMaN

Well-Known Member
rkymtnman said:
that's still ALOT of aluminum cans i got to pick up off the side of the road! lol.

what do you know about the QB and calculating ppf/ ppfd per each one?
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Only want it says on sites, lm/w stuff. Haven't seen a proper setup with 4 of them showing how well they overlap.. But IMO they are to overpriced once they drop to 35-50 they will be a sick option.. If they drop that is
 
rkymtnman

rkymtnman

Well-Known Member
MeGaKiLlErMaN said:
Only want it says on sites, lm/w stuff. Haven't seen a proper setup with 4 of them showing how well they overlap.. But IMO they are to overpriced once they drop to 35-50 they will be a sick option.. If they drop that is
Click to expand...
i can wait. they do look like a nice alternative to cobs for sure.
 
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