2700K. Brightness: 90 Watt equivalent or 1200 lumens. Estimated energy cost: $2.77 per year. 23 W = 90 W (eq). Light Output: 1200 lumens. Incandescent: 1000 lumens. Energy Used: CFL: 23 watts. Incandescent: 90 watts. Life: 10,000 hours. Energy Star. To save energy, find the bulbs with the light output you need, then choose the one with the lowest watts. Instant on. No-wait-brightness. Lighting Facts: Brightness: 1200 lumens. Estimated Yearly Energy Cost: $2,77 based on 3 hrs/day, 11 cents/kWh. Cost depends on rates and use. Life: 9 years based on 3 hrs/day. Light Appearance: 2700 K. Energy Used: 24 watts. Contains mercury. These bulbs contain mercury. Manage in accordance with disposal laws. UL listed. 9-Year Warranty: These GTC bulbs are warranted to last 9 years, based on normal used (3 hours per day). Made in China.