cxb3590 driven at 1400ma

BlackD.O.G

Active Member
Hey guys I was hoping someone knowledgable enough can help me cut to the chase. I just wanted to know what my PPFD would be if I purchased a 10 cob setup driven at 1400ma. If I read correctly the CXBs will be approx 56% efficient at that current. I will learn how to calculate PPFD eventually but for now its baby steps on this whole light engineering.
 

weed-whacker

Well-Known Member
ppfd is what you want to know? google it, you will see that the d is for density

we can't answer how dense the photons will be without knowing how much space they are spread out over
 

coreywebster

Well-Known Member
CXB3590CD36V3500K 10 COBS @1.4A ON 1.813 PROFILE HEATSINK
16 SQ.FT. CANOPY 94% EFFICIENT DRIVER @11 CENTS PER KWH
Total power watts at the wall: 519.15
Cobs power watts: 488
Total voltage forward: 349
Total lumens: 89080
Total PAR watts assuming 10% loss: 247
Total PPF: 1148.55
PPFD based on canopy area: 772.68
PAR watts per sq.ft.: 15.44
Cob efficiency: 56.34%
Power watts per sq.ft.: 30.5
Voltage forward per cob: 34.89
Lumens per watt: 182.54

Download the tool, you will love it.
 

BlackD.O.G

Active Member
CXB3590CD36V3500K 10 COBS @1.4A ON 1.813 PROFILE HEATSINK
16 SQ.FT. CANOPY 94% EFFICIENT DRIVER @11 CENTS PER KWH
Total power watts at the wall: 519.15
Cobs power watts: 488
Total voltage forward: 349
Total lumens: 89080
Total PAR watts assuming 10% loss: 247
Total PPF: 1148.55
PPFD based on canopy area: 772.68
PAR watts per sq.ft.: 15.44
Cob efficiency: 56.34%
Power watts per sq.ft.: 30.5
Voltage forward per cob: 34.89
Lumens per watt: 182.54

Download the tool, you will love it.
Math was never a good subject in school, I will look into that. 772 is a great number for 4x4 tho huh
 

coreywebster

Well-Known Member
Math was never a good subject in school, I will look into that. 772 is a great number for 4x4 tho huh
Its a better PPDF than a 600hps in the same space so cant complain!
This is the very same tool you asked about earlier today on another thread. Enjoy playing with it. Its as addictive as crack.:grin:
 
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