I have a 10x20x10 white room for flowering I have 8- 400w MH/MPS lights no reflectors. 2 are in the veg room now so I have 6 left. If I get only 3x 3 coverage for each light. Thats 18- 400w for the coverage I need?? Is there a better way to attack this. I am looking to maximize the area. I was thinking 4 -1000w at the start but I landed all the free lights.

Each 400w has 36k lumes and 1000w have 110k. Dont the lumes cross or help each out?

Will movers help the situation or only give me the perception and things turn out thin without good structure?

I apprecitate the input.