Kiss your privacy goodbye

see4

Well-Known Member
I'm claiming there is a very good possibility that 1,008 LEDs spread uniformly across the canopy at a height of 100mm will beat the shit out of an HPS at 1 meter.

I showed you the math. It's about the uniformity of the irradiance (e.g. PPFD), spreading the photons proportionately across the canopy. The greater the uniformity the less the distance required between fixture and canopy. The difference in irradiance between a height of 1 meter vs. 100mm is 100x. For 1% of the electrical power you get the same amount of radiant power reaching the leaves. These 1200mm strips sell between $10 and $15. There is no way a small volume manufacturer could compete with those prices and distribution network. Samsung has the ability to bin their LEDs by forward voltage to a very tight tolerance which allows them to wire the LEDs in parallel and maintain a reasonable current balance and thereby uniformity. Using many mid power LEDs spread out keeps the temperature down to around 40° C. This minimizes thermal issues and maximizes efficacy.
Build two tents. Put a 60 watt LED light in one, and a 1000 watt HPS light in the other.

I will bet you $5.00 and a hand job that the 1000 watt HPS light will produce better yields than the 60 watt LED.
 

GrowLightResearch

Well-Known Member
You cannot apply the inverse square law to multiple dispersed light sources as though they were one single source.
You can apply ISL to each light source individually. And collectively.
And in parallel why would the forward voltage matter at all?
You can't think for yourself?
It's got something to do with putting 144 LEDs on a strip and the forward voltage is only 46V.
And if you connect strings of LEDs in parallel and their Vf do not match the strings will be imbalanced and each string would different amounts of current. Uniformity?


I see you're STILL missing the point about intensity...
STFU
Take a day off ya moronic fuckin' twit
 
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SneekyNinja

Well-Known Member
You can apply ISL to each light source individually. And collectively.

You can't think for yourself?
It's got something to do with putting 144 LEDs on a strip and the forward voltage is only 46V.
And if you connect strings of LEDs in parallel and their Vf do not match the strings will be imbalanced and each string would different amounts of current. Uniformity?



STFU
Take a day off ya moronic fuckin' twit
Oh my word, do you even electronic bro?
 

SneekyNinja

Well-Known Member
I know you wouldn't want to lose that bet but are you sure you want to win it?
The moron thinks you can combine dispersed light sources for calculating the intensity...

I should try growing with 1000 candles instead of a light. Or 1000 glow sticks, because I can combine all the individual sources and calculate intensity, right?

Jesus, fuck...
 

Fogdog

Well-Known Member
The moron thinks you can combine dispersed light sources for calculating the intensity...

I should try growing with 1000 candles instead of a light. Or 1000 glow sticks, because I can combine all the individual sources and calculate intensity, right?

Jesus, fuck...
I figure he's trolling.

There is some interesting work going on in the LED section using those strips but their results don't match what numb nuts is talking about.

I saw a diagram showing how to use a pile driver that operates at the world's harmonic frequency to cause the world to blow up. It didn't take much energy according to the calculations.
 

SneekyNinja

Well-Known Member
I figure he's trolling.

There is some interesting work going on in the LED section using those strips but their results don't match what numb nuts is talking about.

I saw a diagram showing how to use a pile driver that operates at the world's harmonic frequency to cause the world to blow up. It didn't take much energy according to the calculations.
I'd like to use a giant tuning fork at the resonance frequency for the human colon at a televised football game or something :)

You could protect yourself with destructive interference and watch as thousands of people violently shit themselves in response to a sound :D
 

GrowLightResearch

Well-Known Member
The moron thinks you can combine dispersed light sources for calculating the intensity...
Really? Still stuck on intensity and still you obviously do not understand what intensity means.
I was referring to irradiance, the number of photons that reach the surface of the canopy per second.
 

Fogdog

Well-Known Member
Really? Still stuck on intensity and still you obviously do not understand what intensity means.
I was referring to irradiance, the number of photons that reach the surface of the canopy per second.
Doesn't matter what you were referring to. One only need consider the source.
 

SneekyNinja

Well-Known Member
Doesn't matter what you were referring to. One only need consider the source.
He told me earlier there's no such thing as brightness. Then he told me they're the same thing. Now he says he figured out the difference between them years ago.

That's progression for you.
 
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