The Satco S16501 11W 4000K 8" Ballast Bypass LED Circline Bulb is a high-quality replacement for traditional 22W FC8T9 bulbs. This energy-efficient bulb features a cool white light color and uses LED technology for cost-effective illumination. With a lifespan of 50,000 hours and a low energy consumption of 11W, it provides bright light with 1210 lumens while using less electricity. Ideal for indoor use, this A++ energy star rated bulb is designed for convenience with a ballast bypass feature and 4 pin connectors, making it a reliable choice for any home or commercial lighting application.