Product Information:The EL1510W Adjustable Spot with Phenolic Baffle Trim is just that, adjustable. It enables spot lighting to a specific area in a room. This Trim fits directly into the housing of the ceiling, saving floor and counter space that most traditional lamps or other light fixtures do not. Enables conversion of existing fixtures to use low voltage MR16 lamps. The transformer is shipped with the trim assembly and attaches electrically to the socket with the housing. Features:#149; Transformer Included#149; 50 Watt Max for Non IC Housings / 20 Watt Max for IC Housings Specifications:#149; Color: White#149; Bulb Type: 12V 20/42/50W MR16#149; Outer Diameter: 7 1/4"