Compact Fluorescent Bulb, Natural Daylight, 4550 Lumens, 60-Watts Magnets & Retrievers Male/female 15/16"-27 outside threads and

Male/female 15/16"-27 outside threads and 55/64"-27 inside threads

Will accommodate pipe diameters up to 1-1/2 inches

Holds gate tightly closed without sagging

Specifications

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Compact Fluorescent Bulb, Natural Daylight, 4550 Lumens, 60-Watts Magnets & Retrievers Male/female 15/16"-27 outside threads andFeit, 60w, cfl pl electric replacement natural daylight compact fluorescent bulb, non dimmable, mogul base, 300w equivalent incandescent, produces a similar light output of 4,550 lumens, uses 65w electricity & up to 76% less energy than a standard incandescent light bulb, ideal for recessed fixture applications, average life of 10,000 hours 91 years, fcc compliant.