Brightness Quality: 260 Lumens. Energy Info: $4.82 Based on 3 hrs/day, 11 cents/kWh. Cost depends on rates and use. 40 Watts. 120 Volts. Package Info: 1 Bulb Info: Indoor Bulb Life: 1.4 Years Based on 3 hrs/day. Bulb Appearance: 2850 Kelvins. Misc: These lamps comply with federal energy efficiency labeling requirements. Unconditional guarantee. Made in USA.