100 Watt surface transformer mounts to a standard 4" square junction box with round plaster ring (provided by electrician).
Kit includes five classic Focus heads with five 20 watt 12 volt MR16 type halogen bulbs, three 36 inch sections of field bendable rail, three 3.5 inch rigid standoffs, two decorative end caps, two conductive connectors, and a 100 watt surface transformer. Rail drops 3.5" from the ceiling. Heads rotate 360 degree around stem and pivot 270 degree. The kit may be dimmed with a standard incandescent dimmer.