this thread got me thinking about led manufacturers height specs.
when they say 12" or 18 or 24 or whatever they are talking at 100% power, so why have a dimmer?
does a led light not put out full light spectrum at say 50% or does it require 100% power to get every spectrum from the light?
newb here and that just popped into my beer soaked brain
I think it's about plant size and how much light it can't handle
Smal plants less
Then flower more and more
Its about ppfd of something like that is called
And late veg and early flower the plants can handle about 400-500 ppfd
And mid flower on ward 600-1000ppfd max that's with no c02 added to the room.
So you can either dimm the light to lower the ppdf or raise the light,
So if manufacture days the light is about 500ppd at 70cm away that be good for first 3 weeks flowe then
Then if the days they lights are 700-900 at 50cm away then you want about 50cm away for mid flower more ppdf more yield,
To much light burn I think, Also it's not all that it's also other stuff I think flux flax I duno lol, Also led does five some heat off to moving it to close for more ppfd can burn the plants from the heat off them, I think, if experienced rh is toddy i think I had dimmed led to 150w moved close 45-50cm away, u may be wrong tho in that last bit..