The Feit Electric 13-watt Cool White (4100K) PL GX23 Fluorescent Light Bulb is a compact replacement for fluorescent and incandescent lighting in wall sconces, accent lighting, and other decorative lighting fixtures. This non-dimmable CFL uses 13 watts of electricity. It produces an output of 850 lumens and has an average life of 10,000 hours/9.1 years. Feit Electric CFL bulbs have flicker-free instant on illumination and a relatively cool running performance. Choose a dependable compact fluorescent light bulb for residential or commercial applications.