TCP 1R2004 CFL R20 - 15 Watt Equivalent (4W) Soft White (2700K) Flood Light Bulb Replaces standard incandescent 15-watt light bulb but only uses 4 Watts! Compact Flourescent Bulbs use 75% less energy with same light output Lifetime: 8+ years Uses 4 Watts of electricity Not Dimmable Replaces standard incandescent 15-watt light bulb but only uses 4 Watts! Lifetime: 8+ years Uses 4 Watts of electricity Not Dimmable