GE 47487-3 15 Watt (60 Watt equivalent) Energy Smart A21 6 Year Life Light Bulb 3-Pack A smart way to save energy Application: Table lamps, closet lights and standard applications Base: medium screw (E26); Bulb type: A21; Watts: 15 Initial Lumens: 825 Guaranteed to last 6 years based on 4 hours use per day at 120V.