Progress Lighting P8709-31 Dark Sky Cup that Fits Over the Lamp and Used with 1-Light Medium Base Lamp Facing Down Only, Black

Product Description Patent Pending Dark Sky cup fits over the lamp to give ambient down light. Used with one-light medium base lamp facing down only. Black finish. From the Manufacturer Patent Pending Dark Sky shield fits over the lamp on an exterior lantern to prevent light pollution (ambient light scattered into the night sky). Use only with exterior lanterns that have one medium base lamp facing down only. Patent Pending Dark Sky cup fits over the lamp to give ambient down light. Used with one-Light medium base lamp facing down only. Aluminum 2-7/8-Inch Diameter by 3-3/8-Inch Height