NICOR Lighting 4-Inch Dimmable 3000K LED Gimbal Recessed Downlight, White (DLG4-10-120-3K-WH) Utilizes high performing LEDs with greater than 90 CRI and an R9 greater than 50 Polycarbonate diffuser and reflector cone create a uniform light distribution that reduces glare Durable stamped steel construction with die cast aluminum heat sink routes heat away from electrical components Thermally protected, high efficiency driver standard Operating temperature rating of 0F to 120F (-18C  49C)