There is no way I could get the results without the mover. If you have a space that is 7x4 and you place that light in the middle then you will see that the plants on the end recieve minamal light. Add a mover and your prob. is solved. Now, is it better then having say 2,500 watt bulbs (which they don't make), not sure. The light penetration is so much better with a 1000 watt compared to say a 600. Grow LST and all bud sites receive the same amount of light. One of the keys with a mover is that you can skim the top of the plants without the use of a cool tube. Cool tubes are great, but do some homework and find out what is lost because of the glass. Not much, but the loss is there. Cool tubes are also great if you have heat issues, something I do not have.
It's a "give and take."
Peace