This might be a question with an obvious answer, but I’ve been reading and searching and can’t find a cut and dry response.
I know the rule of thumb is too keep your LED fixture a certain height above the canopy to allow proper DLI. But why can’t you mount the fixture up high, say, near your exhaust fan intake, and use the dimmer to achieve the desired DLI for your plants needs?
Is there a variable I’m missing that can only be achieved with the lights closer to the canopy?
I have a Hyphotonflux HPF4000 in an AC Infinity 5x5 tent.