Cree Lighting 100W replacement R20 LED bulbs are among the brightest R20 LED bulbs available, ideal for 4_ recessed cans in high ceilings or anywhere you want the most light. Engineered to work better and last long, they feature beautiful light with exceptional color quality to make the colors in your home appear vibrant, rich & natural. Designed to last more than 22 years (25,000 hour rated lifetime), theyÕre also dimmable and backed by a worry-free 100% performance satisfaction guarantee.