TC CFL Mini Spring A Lamp, 75W Equivalent, Daylight (5000K) Spiral Light Bulb (2 Pack) Replaces Standard incandescent 75-watt light bulb Compact Flourescent Bulbs use 75% less energy with same light output Lifetime: 9.1 years Uses 19 watts vs. 75 watts, saving you $122 over life of the bulbs Not Dimmable Estimated Annual Energy Cost to Operate: $2.29/bulb