Brightness Quantity: 320 lumens. Energy Info: $0.48 bases on 3 hrs/day, 11 cent/kWh. Cost depends on rates and use. 4 watts. Package Info: 2. Bulb Info: Indoor. LED. Is Dimmable. Screw. Bulb Life: 9.1 years based on 3 hrs/day. Bulb Appearance: 2700 k.