The Sylvania LEDRT4L9W550L30K 9-watt LED downlight provides considerable energy savings compared to 50-watt incandescent lamps. This recessed downlight fixture has an integrated LED power supply and thermal management system combined in a single compact unit. Providing 550 lumens and 82 CRI, this LED downlight with integrated trim is the obvious choice for green, energy-efficient lighting in commercial and residential applications. Sylvania's 4-inch retrofit works with standard dimmers, dimming 10 percent to 100 percent. Optional GU24 base adapter available.