GE 64693P Energy Smart CFL Standard Base 11-Watt (40-Watt Replacement) 495 Lumen A17 Bulb, 5,000 Kelvin, 3-Pack 11-Watt Light Source that replaces a 40-Watt bulb Provides cost savings, extra long life, light output, and color rendering With this CFL you'll get dramatic energy cost savings up to 77 percent Perfect for residential or commercial use - 5,000 Kelvin Color Temperature Standard E26 Base - Anti-Vibration for Ceiling Fans