4 Pcs 18 Watt GU24 Twist-N-Lock Base CFL Light Bulb (75-Watt Incandescent Equivalent), Cool White 4100K This bulb has the light output of an incandescent 75 Watt Equivalent light bulb, but only uses 18 Watts of electricity Switching from your incandescents to CFL will save you $57 over the life of this item Ideal for use in kitchens, living rooms, dining rooms, offices, family rooms, and bedrooms Light output has more than 5% when used base down position than in base up position Average lifetime is 10,000 Hours. 1200 Lumens (Light output). Color: Cool White (4100K)