I would probably try to get at least 150umol or more for clones and seedlings.That it's the spectrum of the top of my cuttings it's I think it's 3 times lower then what it should be but my partners think it's perfect what do you think? The second picture it's the top of my flowering plants it's 12 inches away from my gavitas should I drop them close cause I got 1500 ppfd in 7 inches below the light
Any other options from a different guys? I never gonna buy gavita again I think they are garbage I waiting on 100 830w luxx lithing and will share the spectrum soon I hope they will be more powerful cause gavitas are 670 wats I think
There is something called the "light compensation point" and this is the threshold where a plant begins photosynthesis, anything lower and the plant really doesn't use the light or "wake up" persay. I don't know how accurate the source was, but I seem to remember 90umol being mentioned for the light compensation point of cannabis, other crops I've read is around 50umol.
So I would say anywhere really from 150 to probably 300 would be appropriate for clones and seedlings in a 24/0 light regiment.