5 CCT-in-1:The recessed lighting 4 inch can be set to 2700K(soft white), 3000K(warm white), 3500K(neutral white), 4000K(cool white) or 5000K(daylight) at a time to meet your needs, which successfully eliminating the hassle of returning or exchange products due to inappropriate color temperature. Just click on the side of the J-box, and you will get the most-desired color that best fit in your house. IC Rated: This canless LED recessed light is IC rated, ETL & Energy Star certified, and the wire terminal is UL-certified. It is permitted to be in contact with insulations in ceilings, meaning the junction box is thermally protected. High Quality: The 4 inch slim dimmable downlights use LED chips with a higher 750 lumens and lower power. 10 Watts equals 60W halogen lamp, CRI90+, which provides a brighter, more colorful, environmentally friendly light source for your house. Most of the installation materials are provided. It should be noted that you will also need to purchase ť size of a holesaw, the size required for these led can lights is: 4.25''. Wide Application: Ultra-thin body, 5%-100% smooth dimming, compatible with most dimmers, meets kinds of needs in applications such as kitchen, living room, bedroom, bathroom, workplace, common areas, outside soffits and other spaces hard to reach. New box never opened