The Radius Track Saddle Canopy Kit mounts anywhere along the track (excluding track mounting hole locations) for power feed from 3 or 4 inch octagonal junction boxes. Available in Matte White or Matte Black finish. Track must be mounted at 45 to the mounting holes when using a 3 inch junction box. Max load 20 amps at 120 volt 60Hz. UL listed. 4.5 inch square x 1.18 inch height.