Is 750 watt double end hps 24 inches from canopy the same as 1000 watt double end hps from 36+ inches away? I ask because my plants have gotten 24 inches away from 1000 watt hps double ends and I can tell some of the plants don’t like it. I can’t bring the canopy down any nor can I adjust the lights any higher. Would it be better to turn the lights down to 750? Would I get the same production if so? Thanks.
Maybe @dbrn32 can help you out with that.
Really depends on the reflector design and size/shape of room. Turning your ballast down is going to put less light into your space. Lowering the fixture won’t magically replace that. You could get center of canopy to similar intensity, but edges will probably suffer some. Ideally you would find a balance between good intensity and happy plants.