Cree photophyll and pro 9 colors

grotbags

grotbags

Well-Known Member
i would have added some uva but i dont hink led-tech has any modeled in its simulator.
i would run the mint evos and all the blue monos on 1 channel then the pro9's and 660 on a second channel then just the 730nm on a third channel.

a one light does it all solution -
veg - run more channel 1, small amount of channel 2 + 3.
flower/strech - still heavy on channel 1 but slight bump to channel 2, leave channel 3 (far red) low.
flower/stack - lower on channel 1, channel 2 full power, channel 3 high.
flower/bulk - full power channels 1, 2 + 3.
flower/ripening - full power channel 1, pull back channel 2, channel 3 moderate.
 
grotbags

grotbags

Well-Known Member
all the above is obviously strain dependant, but if you have something that is very small and compact not much stretch in early flower try more channel 2 and channel 3 in veg and stretch. if you have the oppostite something tall and leggy that stretches for fun and has poor internode/bud spacing do the reverse.
 
grotbags

grotbags

Well-Known Member
if in flower you have a strain with really tight/dense bud structure really pump channel 3 in bulk (like a 1:1 ratio of 660 to 730 nm) for a more sodium look a like bud. if again you have the opposite something a bit loose/fluffy (admitidly this is rare when growing under normal off the shelf led spectrums(all strains have denser buds under standard/normal led than sodium due to the complete lack of or the absurdly small amount of far red that most led light companys add)), kill the far red completley in bulk to firm it up.
 
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J

Jonesfamily7715

Well-Known Member
grotbags said:
how are you thinking of using the pro 9's? as a standalone or mixing it with another white midpower and/or monos?.
Click to expand...
I bought some cmu 2287 cobs and those colors had just came out at that point I opted for the standard z 95+ CRI 4000 and 3000k always wondered about the pro 9 colors since. It's a good cob in my opinion I use xpg3 blue and reds with em
 
D

Dave455

Well-Known Member
grotbags said:
i would have added some uva but i dont hink led-tech has any modeled in its simulator.
i would run the mint evos and all the blue monos on 1 channel then the pro9's and 660 on a second channel then just the 730nm on a third channel.

a one light does it all solution -
veg - run more channel 1, small amount of channel 2 + 3.
flower/strech - still heavy on channel 1 but slight bump to channel 2, leave channel 3 (far red) low.
flower/stack - lower on channel 1, channel 2 full power, channel 3 high.
flower/bulk - full power channels 1, 2 + 3.
flower/ripening - full power channel 1, pull back channel 2, channel 3 moderate.
Click to expand...
I would just buy a light and cutout all the steps. keep it simple
 
F

Frankindank

Member
As promised, and to keep to consistent and accurately presented and cited information...
Here are the official CREE Pro9 ppf/flux conversion factors.
  • 6500K pro9: 0.01460
  • 5000K pro9: 0.01460
  • 4000K pro9: 0.01473
  • 3500K pro9: 0.01445
  • 3000K pro9: 0.01467
  • 2700K pro9: 0.01439
Big note is they are not interchangeable with B-lux figures, and should be a lesson to all that we can not use associated property assumptions about KSF based phosphor. Or anything for that matter.

So back to the specific single chip based situation of the CREE's g-class in 4000K 80cri, 90cri, and 90cri pro9. I added an additional digit from the original post because 80cri vs pro9 are that close in photons with the correct conversion factor.

For the G-class if we use 70ma(.188w) flux for instance, and calculate µmol/w( flux*conversion.../wattage )
4K80(40.5lm flux@70ma)= 40.5*0.014034/.188 = 3.023µmols/w
4K90(34.9lm flux@70ma)= 34.9*0.015403/.188 = 2.86µmols/w
4Kpro9(38.6lm flux@70ma)= 38.6*0.01473/.188 = 3.024µmols/w

The correct conversion factor completely changed to outcome and rank of these for horticulture. Pro9 produces more photons and energy than any other CRI. Splitting hairs for the top spot, but clearly pro9 is better than standard 90cri in terms of output and efficacy in both energy and photons.
 
grotbags

grotbags

Well-Known Member
Frankindank said:
As promised, and to keep to consistent and accurately presented and cited information...
Here are the official CREE Pro9 ppf/flux conversion factors.
  • 6500K pro9: 0.01460
  • 5000K pro9: 0.01460
  • 4000K pro9: 0.01473
  • 3500K pro9: 0.01445
  • 3000K pro9: 0.01467
  • 2700K pro9: 0.01439
Big note is they are not interchangeable with B-lux figures, and should be a lesson to all that we can not use associated property assumptions about KSF based phosphor. Or anything for that matter.

So back to the specific single chip based situation of the CREE's g-class in 4000K 80cri, 90cri, and 90cri pro9. I added an additional digit from the original post because 80cri vs pro9 are that close in photons with the correct conversion factor.

For the G-class if we use 70ma(.188w) flux for instance, and calculate µmol/w( flux*conversion.../wattage )
4K80(40.5lm flux@70ma)= 40.5*0.014034/.188 = 3.023µmols/w
4K90(34.9lm flux@70ma)= 34.9*0.015403/.188 = 2.86µmols/w
4Kpro9(38.6lm flux@70ma)= 38.6*0.01473/.188 = 3.024µmols/w

The correct conversion factor completely changed to outcome and rank of these for horticulture. Pro9 produces more photons and energy than any other CRI. Splitting hairs for the top spot, but clearly pro9 is better than standard 90cri in terms of output and efficacy in both energy and photons.
Click to expand...
thats quite impressive.
 
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