Con-Tech's new retrofit trims provide a convenient method to upgrade standard 6" incandescent downlights to 120 volt MR16 halogen lamps for superior energy-efficiency and color rendition.
The retrofit kit includes:

A medium base socket converter that installs in place of the incandescent lamp. A socket adapter for the special line voltage MR16 lamp, which is included. Retrofit trims are supplied with the your choice of a Narrow Flood, Narrow Spot, or Wide Flood lamp. This trim features 30° vertical adjustable, 358° rotation and is available in white finished trim with either a black or white baffle. Please see the option below.

Complete fixture requires both a housing and a trim.