Mounts to a standard 4" junction box with round plaster ring (provided by electrician). Electronic transformers inside a 28" by 4" housing. Three Free Jack ports; for ceiling only.
This product can mount to either a 4" square electrical box with round plaster ring or an octagonal electrical box (not included). For ceiling only. Transformers (included) fit in canopy.
"For use with any three 12 volt halogen Free Jack pendants or heads.