GE 47452-3 42 Watt (150 Watt equivalent) Energy Smart Soft White Spiral T4 Light Bulb 3-Pack A smart way to save energy Application: Table lamps, closet lights and standard applications Base: medium screw (E26); Bulb type: T4; Watts: 42 Initial Lumens: 2700 Guaranteed to last 8 years based on 4 hours use per day at 120V.