nice idea i actually though of this when i was buying lights at the market. but due to the circular flos being small its not worth it. also its not very manuverable and having several compact flos in the sides and top is much better since you direct all light right onto the plant as opposed to losing some from the other side of the round flo that doesnt see the plant and the round flos dont come in high wattages i think..
but very cool idea