Goal is to be in that 40 to 60k region, heat dependant of cause. Foot candles drop off so fast with lamps. I'm also running an XL cooled hood so that helps with some heat but of cause I'm losing lumans with that. An older pic and ive since upgraded my filter and ducting on the left hand side.
#101 Nowhere near as good a set up as most of the people on here but that's a 4 x 4 tent with a 3.5 x 4 scrog net, 4 plants. Pulled a pound first run. So not to shaby if I had of used the whole tent I could of gotten 1g per W fairly comfortably. Anyway, pic is just to show you that you can indeed run lights fairly low.