Upgrade fluorescent fixtures to the latest LED energy-saving technology with the Feit Electric 8-Inch 15-watt (22-watt Equivalent)Circline LED Light. These non-dimmable 1400-lumen circular light tubes replace FC8T9 or T9 bulbs, ideal for ceiling fan and fixture applications. These bluish white 6500K Daylight Deluxe White lights allow you to see objects in finer detail and create a vibrant mood for both residential and commercial spaces. Feit Electric circline fluorescent replacement bulbs have a relatively cool running performance and use 31.8% less energy than fluorescents. Installation is easy: simply plug the new lamp into the existing electronic ballast. No replacement or removal of the ballast is required. These lights offer instant-on, flicker-free full illumination with no warmup time. They are mercury-free and shatter-resistant for safe and easy disposal. Each high-quality bulb offers accurate color-rendering, for more vibrant, true-to-life colors. Switch to FC8/865/LED Type A LED circline lights for your space and get up to 25,000 hours of superior light. That's 22.8 years with 3 hours of daily use. Enjoy lower maintenance costs compared to traditional fluorescent lights. The estimated energy cost is only $1.81 per year.