Lamp Luminous Flux(lm)?? The higher ther better or No?? Help if ya can

chazbolin said:

SDS you take this subject on exquisitely by doling out the science that supports the physics of light as electromagnetic radiant energy and you do a wonderful job of statistically correlating that energy to plant photobiology. I commend your patience as I think you handle the topic deftly albeit with a decidedly SSL bias. But nonetheless the community is better for it as you impart what should be at least recognized by any grower reading this, it is information that distinguishes the differences between plant and visual lighting. Without that acknowledgment and/or at least the the opportunity to question the visual data given by lighting manufacturers most growers would determine what light to use based on the highest number given in values such as luminous flux, kelvin, lumens, etc.

Light is a complex topic and while your answers tend to require the average reader to go well beyond their capabilities it is information that when broken down makes sense. I don't see it as pontificating or your being on a soap box. People will take from it what they can or ignore it entirely if it's over their heads. But it's there and you are to be thanked for sharing this information.

And if I may reference your previous car analogies, we don't use a thermometer to measure how many liters of fuel we put in our car. I'll get the temperature of the fuel and I with that information I may successfully make it from say Hanover to Kiel but it won't be because I knew the temperature of the fuel going into the tank. You got to Kiel because you had enough fuel to get you there. Pointing to a value that had little to no relevance in accomplishing that trip would be akin to stating your grow was successful because your light produces a higher lumen/watt. A luxometer would be the thermometer of plant lighting meters as they are designed to provide data falling within human visual responses which, like the temperature of my fuel, is not correlative to plant absorption and action spectra.

Ultimately the plants speak for themselves. Repeatability of techniques that prove successful is what makes growing your own, whatever the crop, rewarding. With lighting being a key element in that equation it is incumbent upon the grower who wishes to optimize quality/yield while reducing operational costs to have the data that will allow them to build upon past success.

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guod said:

lumen of blue and red leds...

http://www.led1.de/shop/winger-power-leds/winger-power-leds-3w/winger-weprb3-s1-power-led-star-royalblau-450nm-3w-35lm.html
http://www.led1.de/shop/winger-power-leds/winger-power-leds-3w/winger-wepbl3-s1-power-led-star-blau-470nm-3w-35lm.html
http://www.led1.de/shop/winger-power-leds/winger-power-leds-3w/winger-weprd3-s1-power-led-star-rot-625nm-3w-100lm.html
http://www.led1.de/shop/winger-power-leds/winger-power-leds-3w/winger-wepdr3-s1-power-led-star-tiefrot-650nm-3w-45lm.html

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CCT for 660nm

X-Coordinate ~ 0.73
Y-Coordinate ~ 0.27

CCT for 450nm

X-Coordinate ~ 0.15
Y-Coordinate ~ 0.0

you can express any light in lumen if you know the spectrum...
...in Kelvin its a little bit harder..

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and here is a spectrum of a light with a CRI of 100
View attachment 2658616

rethink your color theory!

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RB1956 said:

WOW calm down peeps..lol.. Just a simple ??? but if everything on the light is the same but the amount of lumens it pushes out well the one with the higher lumens is clearly better.. Well IMO, but im not a genius so I may be wrong..

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WOW calm down peeps..lol.. Just a simple ??? but if everything on the light is the same but the amount of lumens it pushes out well the one with the higher lumens is clearly better.. Well IMO, but im not a genius so I may be wrong..

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I understand CCT to be a Color Corrected Temperature but why does it need to be corrected in the first place? What is it's relevance, if any, to CRI?

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Some colors where added ....

Does anybody know more or less how that is happening ?

Electron Excitation ..
They start "jumping" "back 'n forth " from lower to higher states of energy (from heat )..
Releasing photons at every "jump back'n'forth..

As material keeps receiving energy ,overall "base energy state " is keep rising ....

So at a point ,photons being made ,have/contain more and more energy in them ....

Red =>amber=>yellow=>green=> blue=>violet=> uv ....
From lower to higher energy photons .....

So ,while metal block heats up ,more photons of higher energy state are being emitted ...
(power stays the same .....2000 Watts you gave steel in form of heat ?
2000 Watts of photons you'll get back ....
Number of photons change and not the overall amount of light's power ...
More simple ? Spectrum is " shifting " ....)


So for humans becomes brighter light ...Mainly cause of green photons ....

Further heating .....
At plasma state ...

Steel now emits UV ,microwaves ,x-rays ,gamma-rays .....


Actually the sun is a big block of Iron ( the core ) , in such plasma state (fussion ) ....

You know the rest ..More or less ......

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jubiare said:

Again, I don't disregard your theories but I don't get all of it.. So make an effort for getting them down if you care?
And stop your superiority thing.. Ego prevails?

The ideas are from the universe and whether you are called knna SDS or fuckARE or whatever.. It doesn't really matter

It's a connection of ideas and things from individuals but it's not me me me ... It's rather us us us

That's why I miss knnas posts: the humility and the clarity and the top notch factual understanding of the field!

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jubiare said:

So fierce about the ego eh

I don't like mine, I despise it.. I think I am full of shit and laugh about myself when I am down that road eheh

Anyway we all have our reasons and different opinions that's fine

But I do love the stupids and the retarded
As the geniuses!

And love you too a little bit riu companion

But yeah I don't know what love is either I suppose

We all come out of "separation" from the womb
Ultimately, we all want "reunion"

We suffer and we burn one
Life is a beautiful thing

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