Lutron Energi Savr Node QS DALI Fixture Controller for DALI compliant Digital Addressable loads. It provides DALI bus power and control for two independent DALI Buses with up to 64 ballasts each. It provides direct connections and power for the following Lutron® devices that is occupancy sensors, daylight sensors, IR receivers and QS devices. Power failure memory retains control unit programming in the event of a power loss. Default configuration requires no commissioning. Programming available via the Energi Savr Node QS hand-held device. Four occupancy sensor inputs for automated control of lights in areas. Four daylight sensor inputs automatically adjust light levels based on the amount of natural light entering through the windows. Four IR receiver inputs for personal control. Add more occupancy sensors, daylight sensors, or IR receivers by connecting QS Sensor Modules. Includes QS control link for seamless integration of lights, motorized window treatments, control stations, and QS Sensor Modules. Energi Savr Node QS units and QS Sensor Modules can be used in a Quantum® system to control and manage light in an entire building.