Made of pure white acrylic material with a slip 1/4-27 and 1/8IP center hole.
Removes light bulb glare
Translucent Diffuser - for mounting on top of the shade or in the case of hanging lamp shades both the top and bottom of Drum style lamp shades.
Directs light downward for accent or for improved reading light
11.5 In Diameter, Fits 11.5-14 Inch Openings(NOTE: Once adhesive paper is removed, no credit can be given if returned. Please make sure diffuser fits before removing paper.)
Mid-Century Shallow Drum style shades were often accessorized with white translucent acrylic diffusers top mounted for table and floor shades and both top and bottom mounted for hanging fixtures. Not only do these diffusers improve quality of the light, especially when using energy efficient compact fluorescent or halogen light bulbs, they also add a finished look to many table lamps. When mounted underneath, a superior look and performance is achieved for Shallow Drum hanging fixtures.
B&P Lamp Lampshade Diffuser 11.5 In Diameter Fits 13 And 14 Inch Openings - B008UW77DI