Progress Lighting P5219-31 Cast Aluminum Clear Glass Liner with 1/2-Inch NPS Threaded Fitting For P8667 or P8616 Installation, Black Black Finish Clear glass Size: 6-Inch Width, 7-Inch Height Uses (1) 18-Watt T5 wedge base bulb Progress Lighting has over 5,000 lighting fixtures offered in our catalog, the largest single source for residential and commercial lighting