The MW MERD409SM downlight retrofit kits are designed to upgrade your existing 4 inch downlight easily. It can be fitted in a standard recessed can housing without any modification. With the 5 selectable color temperature technology you can choose your most favorite environment color temperature without changing the lamp.The MERD409SM is Energy Star® and ETL certified. Also, it can be used to comply with Title-24 and JA8 high efficacy light source requirements. With 90+ CRI, the MERD409SM provides perfect light performance, showing the true colors of objects and surroundings. You also get all other benefits of LED technology, including longer life to decreased maintenance cost, less heat for better energy saving in summer.