If you set up your crop like this then you can move your light(s) on a light rail and also fit 80 plants around 2 1k lights and also give each plant 1 square ft of space,but also each plant gets more light penetration than if they were jammed together on the floor because they are at different heights. This setup uses 8 6" wide ,10ft long pvc pipes to grow in that are suspended from the ceiling and positioned so that they basically wrap around the path the light moves on the light rail. 1 oz per sq ft or plant = 5lbs
I'm planning for co2 and hoping for 1.5 oz per plant for 7.5 lbs
check out my very basic drawing. What does every one think ?