The NICOR RSDS-M Series 4-inch Surface Mount Disk Light features an integrated motion sensor that automatically provides hands-free lighting when entering and leaving a room. It mounts flush to the ceiling using standard junction boxes and a convenient twist-lock diffuser for quick, tool-free installation. Offering customizable color temperature settings, smooth dimming, and vibrant color accuracy, this complete fixture is available in 4-inch and 6-inch options and backed by a 5-Year Limited Warranty.