3 Inch Round Baffle Downlight Trim made of die-cast aluminum in a Matte White finish. Clear lens included. Steel metal clips secure trim to housing. One 50 watt 12 volt GU5.3 MR16 halogen lamp, 50 watt 120 volt GU10 MR16 halogen lamp, or LED equivalent is required, but not included. 3.5 inch outside dimension. A complete fixture consists of a housing and trim, sold separately.