The MW SD411SM square downlight retrofit kits are designed to upgrade your traditional 4 inch downlight to a unique and modern square shape without any modification to the recessed housing can. With the 5 selectable color temperature technology you can choose your most favorite environment color temperature without changing the lamp.The SD411SM 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 SD411SM 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.