Crafted from multifaceted K9 glass crystals with an iron frame and oil-rubbed finish. Uses eight 40-watt max E12 bulbs (not included). We recommend energy-saving LED lights. Adjustable drop length ranges from 13.5-154.5. Can be mounted on a vaulted ceiling. Iron chain measures 141 long. Canopy measures 4.75 diameter x 1 h. Hardwired; professional installation recommended. Mounting hardware included. Safety tested for use indoors and in dry locations that are not directly exposed to excessive moisture and water. In order to protect the delicate crystals of this collection, some assembly upon delivery to your home will be required.