Brightness Quality: 2700 Lumens. Energy Info: $5.06 Based on 3 hrs/day, 11 cents/kWh. Cost depends on rates and use. 42 Watts. Has Energy Star Logo Is Energy Smart Package Info: 1 Bulb Info: CFL Bulb Life: 11 Years based on 3 hrs/day. Bulb Appearance: 2700 Kelvins. Misc: 1 general purpose CFL bulb. A smart way to save energy. 150W replacement. Uses only 42W. 2700 lumens. 11 year life (Based on 3 hours use per day). Strong, vibrant light. $142 energy savings per bulb (Compares one 42 watt CFL [2700 lumens] to one 150 watt incandescent [2440 lumens]. Electricity cost savings based on using the bulb for 12,000 hr rated life at 11 cents per kilowatt hour compared to sixteen 150 watt incandescent bulbs [rated life 750 hrs]). Brightness: 2700 lumens. Estimated Energy Cost: $5.06 per year. Limited Warranty: Guaranteed to last 6 years based on rated life at 3 hours consumer use per day at 120V. If this bulb does not last 6 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 exclusions 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 required a short warm up 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. 42 watt = 150 watt. Visit us on the internet: www.GELighting.com. 800-GE-Light. UL listed self ballasted lamp. Made in China.