The Osram 18.3w LED T9 Circular bulb emits a cool white light at 4000K, providing bright and clear illumination perfect for a variety of settings. Its circular design ensures even light distribution, making it ideal for both residential and commercial spaces. With energy-efficient performance, this LED bulb helps reduce energy consumption and costs while delivering high-quality light. The long-lasting durability of the Osram T9 Circular LED ensures reliable and consistent lighting for any environment.