Brightness Quality: 450 Lumens. Energy Info: $1.32 Based on 3 hrs/day, 11 cents/kWh. Cost depends on rates and use. 11 Watts. Has Energy Star Logo Is Energy Smart Package Info: 1 Bulb Info: CFL Is Ceiling Fan Compatable Bulb Life: 9.1 Years Based on 3 hrs/day. Bulb Appearance: 2700 Kelvins. Misc: 1 soft white decorative A17 CFL bulb. 40W replacement. Uses only 11W. 450 lumens. 9.1 year life (Based on 3 hours use per day). Brightness: 450 lumens (Lumens are stated in base-up position. In based down position, lumens will be 480). Estimated Energy Cost: $1.32 per year. A smart way to save energy. 9 year life (Based on 3 hours use per day). Cozy, relaxing light. $31 energy savings per bulb (Compares one 11 watt CFL [450 lumens] with nearly the same light output as ten 40 watt incandescent [490 lumens]. Electricity cost savings based on using the bulb for 10,000 hr rated life at 11 cents per kilowatt hour compared to ten 40 watt incandescent bulbs [rated life 1000 hrs].). GE Spiral bulb on the inside. UL listed. Self-ballasted lamp. Limited Warranty: Guaranteed to last 5 years based on rated life at 3 hours consumer use per day at 120V. (Details on the inside of this package.) Visit us on the internet - www.GELighting.com. Made in China.