and what would that do for us? We are trying to do 2 things with a light mover:
1. use less lights: Using one or two lights where 3 or 4 might otherwise be needed.
2. cover a longer/larger area with the lights, related to #1 in a way.
The main idea is less wattage, less fixtures needed.
As an added benefit, many of the corals we grow respond well to the periodic light/dark cycling through the day. Some scientists have indicated that constant peak exposure throughout the day may be overkill, since it really only takes a brief photoperiod to stimulate the photosynthetic reaction which will then continue to work in the shadow even for some time. Constant peak exposure could actually lead to overexposure and photo-inhibition... stunting coral growth and coloration.
Another benefit is that with a moving light source, more of the coral's surface gets hit with light, so the intense peaks in the high-light zones and whitened spots in the shadowed areas isnt as common. The coral can color in better overall.