Twin Cluster Ceiling Kit, Used To Install A New Light Fixture, 250V Rated , For Use With 2 Medium Base Bulbs, 50W Maximum, Holds A Glass Diffuser, Not Included, Which Is Held In Place By The Brass Finish Lock Up Cap & Rubber Washers, Includes 1 Each Of The Following: Canopy, 2 Bulb Cluster Socket With 18 Awg Pre-Wired 8" Insulated Leads, 4" Offset Crossbar & Brass Finish Lock Up Cap, 2 Each Of The Following: 8-32 x 1/2" Mounting Screws & 1/8 IP Rubber Washers.