Lightolier 23C20MR is a versatile track lighting system compatible with ceiling, wall, and suspended mounted tracks, including multipoint and monopoint options. It features adjustable vertical and horizontal aim with mechanical stops and a locking feature for precise positioning. The fixture accepts various accessories like reflectors, glass lenses, snoot, and louver, allowing for customized light control. It operates on two circuits and is compatible with Lightolier Lytespan track systems.