8217BK Finish: Black Features: -Bezel Shade Only.-Shade Attachment: Zinc plated and painted C.R. steel.-Bayonet fitting.-Shade: Die-cast aluminum.-Front Bezel: High temperature Ultem.-Removes extraneous spill light.-Shade Rear Vents: Aligns with Adapter"s vents for effective air circulation.-Do not use with AL2HC louver. Color/Finish: -Finish: Matte White.-Integral color.-Color Accent Ring: Silicone rubber. Dimensions: -Dimensions: 1.81" H x 2.94" W. Collection: -Track collection.