Brightness Quality: 520 Lumens. Energy Info: $1.08 based on 3 hrs/day, 11 cents/kWh. Cost depends on rates and use. 9 Watts. Has Energy Star Logo Is Energy Smart Package Info: 2-Pack 2 Bulb Info: CFL Bulb Life: 9.1 Years based on 3 hrs/day. Bulb Appearance: 2700 Kelvins. Misc: 40W replacement. Uses only 9W. 2 soft white instant on general purpose CFL bulbs. A smart way to save energy. 9 year life (Based on 3 hours use per day). Cozy, relaxing light. 9.1 year life (Based on 3 hours use per day). $34 energy savings per bulb (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 Soft White incandescent bulbs [rated life 1000 hrs]. Provides more light output [520 lumens vs. 490 lumens]). Brightness: 520 lumens (Lumens are stated in base-up position. In base down position, lumens will be 470). Estimated Energy Cost: $1.08 per year. Let GE show you what light can do. From light that lets you see every detail to light that helps you connect with family and friends, from vibrant to gentle - GE's new home lighting solutions make it easy to find the right light for your home. 400-599 Lumens: Cozy, relaxing light. Visit us on the internet www.GELighting.com 800-GE-Light. 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. If this bulb does not last 5 years, return UPC and register receipt along with your name and address to GE Lighting, Product Service Dept., 1975 Noble Road, Cleveland, OH 44112. GE will replace your bulb. Bulb replacement is GE's sole warranty obligation, and incidental and consequential damages are excluded. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above exclusion may not apply to you. This warranty gives you specific legal rights and you may also have other rights which vary from location to location. Reliable starting to 5 degrees F (-15 degrees C). Lamp requires a short warm up period to reach full brightness. For more information on GE energy saving lighting products call toll-free (800) 435-4448 from 8:00 am-6:00 pm EST. Made in China.