Brightness Quality: 660 Lumens. Energy Info: $1.81 based on 3 hrs/day, 11 cents/kWh. Cost depends on rates and use. 15 Watts. Package Info: 1 Bulb Info: CFL Is Flood Light Bulb Life: 9.1 Years Based on 3 hrs/day. Bulb Appearance: 2500 Kelvins. Misc: 1 track & recessed R30 CFL bulb. 65W replacement. Uses only 15W. 660 lumens. 9.1 year life (Based on 3 hours use per day). $55 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 five 65 watt Incandescent bulbs (rated life 2000 hrs)). Brightness: 660 lumens (Lumens are stated in base-up position, base down position lumens may be more than 5% different). Estimated Energy Cost: $1.81 per year. 9 year life (Based on 3 hours use per day). Clean, beautiful light. GE Reveal Spiral bulb on the inside. 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. C/UL/US listed. Self-ballasted lamp. Made in China.