I'm sure it was mentioned but hood/reflector will concentrate or dilute the light over an area. Look at your spot, see that would/can cover (light movers are not to increase lighted area, but to maximize it; ie: if a 400W covers a 3x3 then a light mover on a 3x3 area will do the area better. A light mover (400W) on a 6x3 will make smaller plants/buds; plants starving for light)