The Crestron® ZUM-HUB4 enables centralized management for Zum® commercial lighting systems of up to 1,000 rooms with an Ethernet switch (sold separately) across Zum wired, Zum wireless, and external spaces. The device provides a web-based user interface for control. A built-in time clock enables room lighting and occupancy and vacancy sensing automation. The ZUM-HUB4 can also be integrated with other Crestron lighting systems and control systems.