The integrated telescoping arm accommodates any pendant up to 9” in diameter. An Integrated two-way touch dimmer makes it perfect for home or hospitality use. Currently only compatible with halogen and xenon pendants, the Ensu (p.358 of Full Line Catalog) can be used with LED pendants. Can mount to either a 4" square electrical box with round plaster ring or an octagonal electrical box (not included). Includes low-voltage electronic transformer.