GE 47478-3 15-Watt (65-Watt equivalent) Energy Smart Floodlight 6 Year Life R30 Light Bulb 3-Pack A smart way to save energy Application: Indoor spot/ floodlight 3.75-inch wide fixtures Base: medium screw (E26); Bulb type: R30; Watts: 15 Initial Lumens: 750 Guaranteed to last 7 years based on 4 hours use per day at 120V.