It can be used anywhere in the run. It brings power to the Kable Lite run from a remote single-feed transformer (sold separately). The low-voltage leads from the remote transformer are connected to the canopy leads inside a standard junction box. The two leads from the canopy are 24" long and can be cut and bent in the field. To drop the Kable Lite system farther down from the ceiling, add a pair of hardwire feeds (sold separately).