EcoSystem is an advanced and flexible communications protocol for Lutron devices, allowing it to be used in many applications. It facilitates individual ballast addressing, connection of multiple control devices, and control of ballasts individually or in groups.
3-wire control is a line-voltage phase-control dimming method. Along with hot and neutral, the dimming signal is communicated via a third wire called dimmed hot. Three-wire control is stable over long wire runs, allows for maximum circuit loading, and is very easy to wire.