Sylvania Double Life Light Bulb, 3 Way, A21
30/70/100. 120 V. Lasts 2x longer. Indoor. Light output (lumens)/energy used (watts): 290/30; 915/70; 1205/100. Life: 2400 hours. Major filament. To save energy costs, find the bulb with the light output you need, then choose the one with the lowest watts. (Lasts 2x longer than standard A21 bulbs). (Almost the same light output and lasts twice as long as a 30/70/100w 290/915/1205 lumen 1200 hr bulb). Made in USA.