Brightness Quality: 740 Lumens. Energy Info: $1.85 based on 3 hrs/day, 11 cents/kWh. Cost depends on rates and use. 15 Watts. Package Info: 1 Bulb Life: 7.3 Years based on 3 hrs/day. Bulb Appearance: 2500 Kelvins. Misc: 1 general purpose CFL bulb. 60W replacement. Uses only 15W. 740 lumens. 7.3 year life (Based on 3 hours use per day). $39 energy savings per bulb (Compares one 15 watt CFL (740 lumens) which provides more light output than one 60 watt Reveal incandescent (630 lumens). Electricity cost savings based on using the bulb for 8000 hr rated life at 11 cents per kilowatt hour compared to eight 60 watt Reveal incandescent bulbs (rated life 1000 hrs)). Brightness: 740 lumens (Lumens are stated in base-up position, base down position lumens may be more than 5% different). Estimated Energy Cost: $1.85 per year. Clean, beautiful light. Bright from the start. 7 year life (Based on 3 hours use per day). GE hybrid technology. Limited Warranty: Guaranteed to last 4 years based on rated life at 3 hours consumer use per day at 120V. If this bulb does not last 4 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 25 degrees F (-5 degrees C). Lamp requires a short warm up period to reach full brightness. This product complies with Part 18 of the FCC Rules, but may cause interference to radios, televisions, wireless telephones, and remote controls. Avoid placing this product near these devices. If interference occurs, move the product away from the device or plug either into a different outlet. Do not install this product near maritime safety equipment or other critical navigation or communication equipment operating between 0.45-30 MHz. Not intended for use with emergency exit fixtures or lights, electronic timers, photocells, or with dimmers. For more information on GE energy-saving lighting products call toll-free (800) 435-4448 from 8:00am-6:00pm EST. Visit us on the internet - www.GELighting.com. C/UL/US listed. Self-ballasted lamp. Made in China.