Satco 3 Way A21 LED Medium Base Light Bulb three different brightness settings of 5 watts, 15 watts, and 21 watts, allowing you to customize your lighting to suit various needs. Featuring a cool white light with a color temperature of 4000K, this bulb provides a crisp and clear illumination i for many environments. Designed to operate on a standard 120 Volt electrical system, its A21 shape and medium base make it compatible with most standard lamps and fixtures. This energy-efficient bulb is a versatile lighting solution that combines convenience, efficiency, and adaptability for everyday use. Model Number: S8544