johnsmith_559
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- 210
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- Joined
- Nov 12, 2020
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so what is the FC at 1 ' , 2' 3' and 4' and the wattage of the led ?
so do the reading and let's discuss it ..
at this point it is obvious evey on his worried it may not come out as expected.
bad sensor? maybe ..do the reading
differnt color photons? maybe ...do 4he reading
different spectral requirements? maybe ....let's just do the reading..please
so what is the FC at 1 ' , 2' 3' and 4' and the wattage of the led ?Sure light is at 50% at about 300w what ya need tested.
Doing now I can tell you this sensor is less accurate and lower.so what is the FC at 1 ' , 2' 3' and 4' and the wattage of the led ?
excellent! those seem like realistic values . am not sure why every one did not want to do it. that isThose are lux values.
Gonna say around 2.4e
excellent! those seem like realistic values . am not sure why every one did not want to do it. that is
8700 4100 and 2100 fc.
those correlate perfectly .
do you know the rated lumen per watt ? it is a required value by the governing body
I not sure if that is right. 240 maybe but I thought it was around 180Gonna say around 2.4
those numbers are good . that is around the same as a 400 w hps.Gonna say around 2.4
how does that work?Interesting. I just figured out why the inverse square law don't work with led. The led isn't coming from a single point. The led is spread out, so the distance between 1 and 2 feet to the censor isn't double.
Only those number were low when compared to my other phone and when compared to peer data. Also when I see light stressthose numbers are good . that is around the same as a 400 w hps.
pythagorean theorem.how does that work?
All I know is I bought a light meter and it totally fkd me up. I don't hardly use it now.All I know is the best meter we can use afaik is a quantum meter to get the most accurate representation of photons in each spectrum. Intensity is the most important followed by spectrum IMO. and spectral effects are absolutely a huge deal and not something to be left out of the equation. Including the rario of spectrum in relation to eachother.
I just use the free app... better than a lot of those cheap ones and like I say I use it to ballpark.All I know is I bought a light meter and it totally fkd me up. I don't hardly use it now.
the thing is once minimum spectral requirements it's all about the intensity . sort of like vitamins . you dont get bigger on proportion to the more you take. they meet the minimum requirements and then the rest are expelled. 2 lights the same out out both with different spectrums as long as they each have the minimum amount thr rest is about volume. doubling the par rating will do very little more . it is the same with the sun . it has a particular spectrum in the spring and summer but growth is similar. even the footcandles . there is 15000 + or 150000 lux on a bright day but we don't have plants significantly bigger than normal. size is also extremely relevant.things just dont double. they move in percentages relating to plant size . +/- 1 or 2% at a time . those crazy adds that say DOUBLE your harvest or EXPLOSIVE growth rate all fake terms that are meant to appeal to inexperienced customers. if a product adds more than 5% to your yield it means your were not doing some thing else in the first placeAll I know is the best meter we can use afaik is a quantum meter to get the most accurate representation of photons in each spectrum. Intensity is the most important followed by spectrum IMO. and spectral effects are absolutely a huge deal and not something to be left out of the equation. Including the rario of spectrum in relation to eachother.
meet too . phones have better sensors than most meters . they all do a basic job though. +/-5 % or so nbd...they read light like ec meters resd salts. they just give a max reading but dont tell individual salts . you have to know what's in there for it to be really useful.I just use the free app... better than a lot of those cheap ones and like I say I use it to ballpark.
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