The Square D 600W Z-Wave Plus Energy Monitoring Dimmer is the professionals choice for secure reliable lighting control. For use in areas where variable lighting is a requirement like the living room where you want bright light for reading on the couch or dim lighting for watching a movie. Perfect for monitoring energy usage and determining cost savings associated with dimming lights. It works with any Z-Wave hub and can be grouped with up to 5 other Z-Wave Plus devices.