ROYOLED 6 Inch 13W 5000k 1100lm Energy Star UL Dimmable LED Recessed Downlight (Replace 90w Incandescent Lights) Round Lighting Retrofit Kit 13W dimmable Recessed LED lighting, with 1100 lumens, Energy cost only 10% of traditional halogen lamp but life term exceeds over 36000 hours , 5000k warm white color temperature with good color rendering.Color Rendering Index (CRI)&gt;80 Dimmable to 1%~100%, Compatible With Most Triac Dimmers. The ceiling light is easy to install in 6 inch light fixtures.No other tools or components are needed. The led light is tested and approved by UL ,Energy Star, LM79. High safety is no doubt assured