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Abiqua

Abiqua

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nomofatum said:
The lower the wattage the better for your use. Also with your limited space you won't get much gain from taller plants without side lighting as only the top will really get light anyway.

Get wide instead of tall buckets too for more space.
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I wouldn't fill up more than 50-60w's of 40+% efficient diodes, unless you want to run dual exhaust fans or a loud exhaust fan....

I have 4x vero 29 3500k in my fridge, starting day 2 of flowering...about 29-32 watts... Veg and flower spectrum,,, the noobs are wrong 3500K is a fine veg color temperature [and not a color spectrum]
 
nomofatum

nomofatum

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Dr New New said:
Thoughts? http://www.nextlightsystems.com/
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Seems like a lot of waste with all that green light that will mostly just reflect off the plant. The charts are too small to read the scale to see exactly what wavelengths of red it's putting out too, looks like the yellow/red peak may be a bit far left for best absorption.

I'm guessing thumbs down, but would need better documentation from them to be sure.
 
Dr New New

Dr New New

Well-Known Member
nomofatum said:
Seems like a lot of waste with all that green light that will mostly just reflect off the plant. They charts are too small to read the scale to see exactly what wavelengths of red it's putting out too, looks like the yellow/red peak may be a bit far left for best absorption.
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THANK YOU!!!!!!!!
 
nomofatum

nomofatum

Well-Known Member


HPS is more yellow than green, but it doesn't exactly hit ideal.

captainmorgan said:
Please tell me we're not going to debate that all you need is blue and red,you know we're on earth and not in space.
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I wouldn't run no green, I would just avoid running something that peaks in green. I want light of all used wavelengths just a lot more of the most usable wavelengths. I would prefer the peaks to be in the red or blue ranges and the valleys to be in the green, but not no green.

So no debate needed unless someone says they want the peak to be in the green.
 
Greengenes707

Greengenes707

Well-Known Member
nomofatum said:
View attachment 3325700

View attachment 3325718


Load all the green you guys want. I will be avoiding wasting my time with it.
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Try this on for size...
2-6RelativeQuantumEfficHEIDI.jpg

Your chart that shows extreme peaks is very misleading...it was found by individually extracting the pigments into petri dishes...then exiting them with each light nm.

As where the McCree curve I just posted(no relation to cree led's)...is the whole intact leafs response to different the light nm's. and is what biologist, botanist, and plant physiologist refer to for real scientific studies.


EDIT:
Also check out this amazing piece of work...
https://www.rollitup.org/t/cree-cxa-3000k-80cri-spectrum-analysis.832666/
lets just say I have every sds post in there printed incase the website ever takes shit.
 
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PSUAGRO.

PSUAGRO.

Well-Known Member
nomofatum said:


HPS is more yellow than green, but it doesn't exactly hit ideal.



I wouldn't run no green, I would just avoid running something that peaks in green. I want light of all used wavelengths just a lot more of the most usable wavelengths. I would prefer the peaks to be in the red or blue ranges and the valleys to be in the green, but not no green.

So no debate needed unless someone says they want the peak to be in the green.
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take your chloro chart and lay it over the HPS's spd............it literally is almost the complete opposite== ha

Greengenes707 said:
Try this on for size...
View attachment 3325730

Your chart that shows extreme peaks is very misleading...it was found by individually extracting the pigments into petri dishes...then exiting them with each light nm.

As where the McCree curve I just posted(no relation to cree led's)...is the whole intact leafs response to different the light nm's. and is what biologist, botanist, and plant physiologist refer to for real scientific studies.


EDIT:
Also check out this amazing piece of work...
https://www.rollitup.org/t/cree-cxa-3000k-80cri-spectrum-analysis.832666/
lets just say I have every sds post in there printed incase the website ever takes shit.
Click to expand...

Yep............that's the one that matters^^^
 
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ballist

ballist

Well-Known Member
I think I have had too much morphine tonight but that makes some sense, at least for now . Remember no real idea about plants but I do know a little about engineering. If a plant uses red and blue more efficiently but needs other spectra for optimum growth it kind stands to reason you would need less of blue and red compared to the other spectra. Of course you would want to know in absolute terms how much of each spectra to give it
Its a happy world we live in :)
 
Greengenes707

Greengenes707

Well-Known Member
The birdhouse...funny shit.
But no...I haven't seen them in person yet. Someone else brought them up months ago...I still have never seen the bottom/led's of the panel. I haven't searched very hard though.
It's just a very vague website, as usual. But would love to see what they are offering. I always have hope for a WW spectrum assuming the output is behind it. But the website is disappointing as well as web searches.
 
stardustsailor

stardustsailor

Well-Known Member
nomofatum said:
Just so I can get this straight and find the latest greatest version of what the plant can actually absorb, what to you guys think of this?

https://www.icmag.com/ic/showthread.php?t=293045

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Old news ....
The topic this "Beta test team " has "researched" ,
we 've already " been through " ,say a whole year ago , before them .
Again: OLD NEWS .
In this forum ,we're always ahead of everyone else ,regarding growing mj with solid state lights.
All the rest ,either they copy our work ,or either they are simply far " behind " us ..
" They are still on the way to it ,when we've already returned from it . "

https://www.rollitup.org/t/what-kind-of-light-mj-likes-decoded-from-its-reflectance.658111/

https://www.rollitup.org/t/photosynthesis-under-solid-state-light-setting-the-standards.833449/


Cheers.
:peace:
 
PSUAGRO.

PSUAGRO.

Well-Known Member
captainmorgan said:
At $3.25 a watt I would like to know what LEDs they're using.
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Greengenes707 said:
The birdhouse...funny shit.
But no...I haven't seen them in person yet. Someone else brought them up months ago...I still have never seen the bottom/led's of the panel. I haven't searched very hard though.
It's just a very vague website, as usual. But would love to see what they are offering. I always have hope for a WW spectrum assuming the output is behind it. But the website is disappointing as well as web searches.
Click to expand...
WW xml2.......don't know if it's the same as in the onyx bloom, won't give me a group/bin#.......big surprise ;-)

Bad timing on their part, updated panels about to release......suckers.....lol
 
H

Heavy Consumer

Well-Known Member
I have spoken to someone who sells Nextlight panels. I was told they only use recent incarnation Cree warm white diodes, but not exactly which ones.

EDIT: Slow off the mark! :sleep:
 
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