NICOR's RSDS-M Series 4" Selectable LED Surface Mount Disk Light with Integrated Passive Infrared (PIR) Motion Sensor provides a fully dimmable flush-mount solution to provide automated on/off control. The PIR motion sensor turns on automatically when entering a room and turns off 30 seconds after leaving the room. The high-performance RSDS-M downlight lets you easily switch between 3 different color temperature options (3000K, 4000K, 5000K) using a switch located on the backside of the fixture. In terms of light output quality, the RSDS-M features an impressive CRI rating of 91 with an R9 value of 50. This helps to produce vibrant colors that are true in appearance. Installation is easier than ever, done behind a removable twist-n-lock diffuser lens to simply mount directly to any 4” junction box using the hardware included. The RSDS-M is perfect for bringing efficient and energetic lighting with motion controls to any room for a clean and professional look. The RSDS-M comes ready to install right out of the box and requires no other parts or components. It's available in both 4" and 6" sizes and protected by NICOR's 5-year limited warranty.