GE Lighting 17979 50 Watt Outdoor Halogen Floodlight PAR38 Light Bulb Protect and beautify your home Application: Outdoor fixtures, including motion sensing fixtures and yard stakes Base: medium skirt (E26/50x39); Bulb type: PAR38; Watts: 50 Initial Lumens: 600 1.5 Yr Life based on 4 hours use per day