GE 21710-3 15-Watt (65W Equivalent) Energy Smart Floodlight Dimmable R30 Light Bulb, 3-Pack A smart way to save energy Application: Indoor spot/ floodlight 375 inch wide fixtures Base: medium screw (E26); Bulb type: R30; Watts: 15 Initial Lumens: 700 Guaranteed to last 4 years based on 4 hours use per day at 120V.