Don't forget Lutron and Lightolier Controls.
Both companies make "multi-location" dimming systems, and many smarter,
memory based systems.

RickR

RBM (remove this) wrote:
Leviton mfg. makes a series of line carrier controls, some with dimming
capabilities. These could independently control your banks of lighting
through a single pair of wires, including dimming and from multiple
locations