TCP 68923DLB2 CFL Spring Lamp - 100 Watt Equivalent (only 23W used!) Daylight (5000K) Spiral Light Bulb 2 Pack TCP CFLs use 75% less electricity than their Incandescent Counterpart, while maintaining the same Light Output Lifetime: 9 years (based on average usage of 3 hours/day Color: Daylight (5000K) This bulb has the light output of an incandescent 100 Watt Equivalent light bulb, but only uses 23W of electricity Switching from your incandescents to CFL will save you $168 over the life of this item