100 W Replacement. Uses only 23 watts. Energy Star. Save $74 in energy costs (As compared to using a 100 Watt bulb at 12 cents per KWH). Lasts up to 7 years guaranteed (Based on normal household use of 3 hours per day, this bulb lasts 7 years.). Light Output: 1600 Lumens. Average Life: 8,000 Hours. UL Listed. Made in China.