Square footage you are trying to cover? Just guessing here, but if you are giving each plant a couple of square feet of space, then that means you have 36 square feet to cover. So, with 3000 watts of light you are pushing almost 85 watts per square foot, or over 10,000 lumens per square foot.
I don't see the payout for this much light over that much space. Unnecessarily higher electricity bills with little added benefit and the possibility of bleaching or even burning your plants.
A 6' X 6' area (2 ft sq per plant) can be covered with a single 1000 watt light on a light mover, or if stationary a couple of 600 watt lamps could do the job.