Lighting leader OSRAM SYLVANIA is expanding the capabilities of the ENCELIUM® Energy Management System (EMS) with the new wireless Area Lighting Controller (WALC) which allows a group of lighting devices to communicate via a wireless mesh network based on ZigBee® standards. The WALC connects groups of 0-10V dimmable luminaires for group dimming or switching applications. The sensor terminal block allows direct connection of dual tech sensors or other low voltage sensors to the wireless network for battery elimination or additional functionality.