CobKits
Well-Known Member
those are vero C
those are spot ppfd measurements at 12" for comparison purposes only. you would not illuminate a m^2 with any of those cobs. actual PPFD would be a function of current and # of cobs per area
How to calculate PPFD for my build?
- Thread starter Joe34
- Start date
Hybridway
Well-Known Member
Thanks man!Do a video so we can pick apart all the shit you are doing wrong like different lights on,dif types of tools laying nearby,wearing different shirts
We should chip in and get coberto a white lab coat,maybe the amare crew has one lmao. @Hybridway been mia lately,hope he's ok.
@Joe34 just normal grow room fans nothing too fancy.i run mostly 140mm x 80mm and sstx heatsinks.got a few 140 x 70mm and 120mm for lower currents of 50w or less.35w cree on a 140mm pin sink is hard to beat
MeGaKiLlErMaN
Well-Known Member
There's the info I was looking for, that's PPF/W right?
CobKits
Well-Known Member
yup, all on same heatsinks at similar temp profiles, measured on axis with a li-cor at 12" in free space
not steady state but i can usually bang thru 0.1, 0.2...0.9,1.0,1.2, 1.4...3.6A measurements in about 2 min before the heatsink gets too hot. not perfect but repeatable from cob to cob
future tests are in sphere (which is pretty similar results to free air based on my first tests ive done)
not steady state but i can usually bang thru 0.1, 0.2...0.9,1.0,1.2, 1.4...3.6A measurements in about 2 min before the heatsink gets too hot. not perfect but repeatable from cob to cob
future tests are in sphere (which is pretty similar results to free air based on my first tests ive done)
pop22
Well-Known Member
pop22
Well-Known Member
KonopCh
Well-Known Member
All around spectrum I meant.
I guess best is colder spectrum for veg (5000 or 6500) and red spectrum for flower (2700 or 3000). But all in one spectrum? 3000, 3500?
What about second question about Vero spctrum vs. Citizen...?