Model Number: A21 Brightness Quantity: 2610 lumens. Energy Info: $3.50 bases on 3 hrs/day, 11 cent/kWh. Cost depends on rates and use. 29 watts. Package Info: 1. Voltage: 120 volts. Bulb Info: LED. Is Dimmable. Has Energy Star Logo. Screw. Bulb Life: 13.7 years based on 3 hrs/day. Bulb Appearance: 2700 k.