So, my 1000w HPS bulb is currently 20" from the nearest plant and its top leaves are curling up and there is light burn in various places.
I was going to put it up higher, but then I saw that the lumen output becomes significantly lower the further away from the plants the light is.
What does it mean and what do I do?
I was going to put it up higher, but then I saw that the lumen output becomes significantly lower the further away from the plants the light is.
What does it mean and what do I do?