TCP 4890935k CFL Pro A - Lamp - 40 Watt Equivalent (9W) Bright White (3500K) Full Spring Lamp Light Bulb Replaces standard incandescent 40-watt light bulb but only uses 9 Watts! Compact Flourescent Bulbs use 75% less energy with same light output Lifetime: 8+ years Uses 9 Watts of electricity Not Dimmable