GE 15517-3 26-Watt (100-Watt Equivalent) Energy Smart Spiral T3 Light Bulb, 3-Pack A smart way to save energy Application: Table lamps, closet lights and standard applications Base: medium screw (E26); Bulb type: T3; Watts: 26 Initial Lumens: 1700 Guaranteed to last 5 years based on 4 hours use per day at 120V.