Brightness Quality: 1600 Lumens. Energy Info: $2.77 based in 3 hrs/day, 11c/kWh. (Cost depends on rates and use). 23 Watts. Package Info: 1 Bulb Info: CFL Bulb Life: 9 Years based on 3 hrs/day. Bulb Appearance: 2700 Kelvins. Misc: 100 w replacement using only 23 w. 2700 K. Non-dimmable. Brightness: 1600 lumens. Estimated Energy Cost: $2.77 per year. Lasts 9 years (Limited Warranty: 9 years based on normal household usage in accordance with package and bulb directions. See inside for further details regarding consumer rights, limitations on liability and damage). 75% energy savings. Light Output: 1600 lumens. Energy Used: 23 watts. Life: 10000 hours. To save energy costs, find the bulb with the light output you need, then choose the one with the lowest watts. Uses less energy. Note: Reliable operating temperature range 0 degrees F/ -18 degrees C to 100 degrees F/ 40 degrees C. Color temperature is 2700 K. C UL US listed. www.sylvania.com (US & Canada). Made in China.