Thanks man, keep sending em...no disrespect intended in the following....
Read that one, and others, before.
Imo, while true, the elephants in the room are not discussed:
1. What besides ‘overall plant photosynthesis”, does green add to the mix.
2. The benefit above, occurs at a higher efficiency at the canopy bottom (“deeper penetration”)...but does it really matter given that overall ppfd at bottom of canopy is so much less than middle and top?
View attachment 4323316
In other words, do you value a few more grams of larf, or would another oz or two at top (from red) be better?
3. As with everything, there is a price, a benefit, and the ratio of benefit to price (called “value”). If you have a limited budget, which colors provide the most value?
4. The article is focused on hid not white led, which is obvious when you look at white led spectra, in the nm range 450-550:
96elite V2
View attachment 4323317
Eyeballing it, looks like somewhere between 0.3-0.4 average relative intensity for 450-550 nm range...a substantial amount of green
288v2
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Eyeballing the 3000K, same, if not more.
If i spend anymore time on spectrum, it’ll be on uv-blue end of spectrum, which are already known to be critically important to prop/veg, photosynthesis, and terps/thc/other cannabinoids.
When i see reports of a green supplemental light driving signif yield increases or other gotta-have benefits, i’ll take it more serious.
I am doing one more smackdown focused on lights, then i’m focusing on other things related to growing reef; mostly, growing as many diff strains as possible.
These white leds are fuckin great, and can be specifically supplemented with other colors. I think that they have already maxed their photosynthesis potential, and future improvements will primarily be efficiency, mixing, and controllability.
Adding more green to white leds is a waste of $’s if all they do is add to “overall photosynthesis” or “penetrate deeper”, that can be done cheaper and with added benefits by blue or red light positioning and/or intensity.
Her branches at the top are nearly the same thickness as the other girls' at the bases of their branches.
