I have question about light intensity. There are a lot of light intensity charts on the internet, somebody said 40000 LUX for vegetative, someone said 20000 LUX is enough. I tried 40000 LUX for vegetative, but it seems too much for my weed and 20000 LUX looks lower than requirement.
Could some expert give me a exact number of LUX for vegetative and flowering?
Thank you very much