Cree Lighting CR4-575L-27K-12-GU24 LED Downlight, 4" Recessed 120V GU24 Base 2700K Dimmable - 90 CRI 575 Lumens Utilizes Cree TrueWhite Technology Up to 67 lumens per watt Standard 5% dimming 50,000 hour rated life EnergyStar Qualified Replaces 50 watt incandescent Fits most 4" recessed housings Suitable for non-insulated ceilings only