I have two of these from my first grow. Actual draw is 527 but honestly I’d say that it would take 4 to light a 4x8. They are not bad lights, they perform really well for veg. I just don’t think you can get around the cost of $1400-$1600 to light a 4x8 with LEDs unless you diy. Anyways, my advice would be to run 5 gallon pots and not use the entire tent. Maybe use 4x6 and have the extra room to move around.Is the viperspetra 1200 actually around 500 watts, or is it the full 1200?