These LED retrofit trim modules are the easy, economical way to upgrade existing 4" recessed downlight housings to ultra-efficient LED illumination. Available in two lumen packages, they produce 650 lumens from just 10-watts or up to over 900 lumens from only 13.4 watts, offering energy cost savings of up to 80% compared to equivalent incandescent fixtures. With a rated service life of 36,000 hours, they provide many years of maintenance-free operation while delivering exceptionally accurate color rendering of 90 CRI minimum.