This 6500K natural daylight bulb is non-dimmable and will replace a 100-watt equivalent incandescent bulb. It produces a similar light output of 1450 lumens, uses 27 watts of electricity and up to 77% less energy than a standard incandescent light bulb. This compact fluorescent light is ideal for recessed fixtures. Feit Electric Compact Fluorescent PL bulb with a GX10Q-4 base has a relatively cool running performance, an average life of 10,000 hours / 9.1 years and is FCC compliant.