MaxLite Energy Star Fluorescent Smart Energy Saving Spiral Light Bulb 23-watt Warm White 100-watt Replacement- 4 PACK 2700K Warm White Energy Star Partner Energy Saving Bulb Light Output : 1650 Lumens; Energy Used : 23 Watts; Bulb Life : 12,000 RoHS Compliant and Earth Friendly $92.00 energy cost savings over the life of the bulb is calculated based on 10 cents per kw hrs vs. cost of burning 100 w incandescents for the same amount of time T2 Spiral