TCP 5801865k CFL Spring Lamp - 75 Watt Equivalent (only 18W used!) Daylight (6500K) TruStart Spiral Light Bulb TCP CFLs use 75% less electricity than their Incandescent Counterpart, while maintaining the same Light Output Please NOTE: This light bulb has TruStart Technology - Instant on; fast run up time to full brightness, and 20,000 hour life (18.3 years) This bulb is compatible with most OCC Sensors (Occupancy sensors) This bulb has the light output of an incandescent 75 Watt Equivalent light bulb, but only uses 18W of electricity Switching from your incandescents to CFL will save you $62 over the life of this item