From Juno, this single circuit track section is compatible with both Trac-Lites and Trac-Master heads.
More Details >This reduced profile, silver finish 8' one-circuit track section is for installation of track lighting or pendant mounting. It can be surface mounted or suspended from the ceiling and is compatible with Trac-Lites and Trac-Master systems, and a host of feed, connector and mounting accessories (all sold separately). Sturdy construction of extruded aluminum insulated by thermoplastic, and two 12-gauge solid copper conductors. From Juno track lighting. UL listed.