Crafted from Spanish alabaster stone, steel cables, and brass accents on the canopy. Integrated dimmable LED bulbs are included: 30 watts for the 54" chandelier, 42 watts for the 64" chandelier, and 60 watts for the 74" chandelier. LED lifespan is 30,000 hours. Can be mounted on a vaulted ceiling. Each steel cable measures 144" long. Clear plastic cord measures 144" long. Professional installation is required (mounting hardware is included).