How tall do you think a sog from well rooted clones with no veg should finish? Average 60 day strain. lets say a kush strain for example.
You lost me when you said you LST (light scissor train, trim?) I am a coco/ perlite grower.I set the 1kw HID horizontally in a reflective bonnet. From the bottom of the glass to the surface of the gravel is about 44"'s. Most snips make it up to the bonnet so I LST them by tipping them by the roots while the table is flooded.
You won't be doing any lst on a 7000 sqft canopy...
You lost me when you said you LST (light scissor train, trim?) I am a coco/ perlite grower.
To pull off 400lb's every eight weeks you'll need about 240kw's of hps