Features0.06 in nominal wall thicknessSolid copper bus bars cross section equivalent to 12 AWG wireRigid extruded polyvinyl insulatorExclusive independent grounding bus conductor, maintains an independent positive ground 12 AWG path between lampholder, trac channel and building's ground systemCross section equivalent of 12 AWG wireVisual polarity groove indicates proper electrical installation of lampholder adapterAll halo-2 Power-Tracâ„¢ is shipped from the factory with a "LEFT" dead end installedThe L941 live end connector is designed to attach to the right hand side of the trackLocate small polarity indicator on the connector and align with polarity groove on trackTrack system is recommended for ceiling mount only, for alternate mounting methods consult factory8 ft nominal sizeDesigned for concise control of each circuit