Brightness Quantity: 370 lumens. Energy Info: $4.82 based on 3 hrs/day, 11 cents/kWh. Cost depends on rates and use. 40 watts. Package Info: 4. Bulb Info: Screw. Candelabra.. Bulb Life: 1.4 years based on 3 hrs/day. Bulb Appearance: 2500 k.