The MonoRail Low-Profile Power Feed Canopy allows for the closest-to-ceiling possible mounting of a MonoRail run. It brings power directly above a MonoRail run from a remote transformer (sold separately). The low-voltage leads from the remote transformer are connected to the canopy leads inside the junction box. Compatible with MonoRail 1 inch Rigid Standoff. Not compatible with Power Extenders nor Power Vault Adapter.