Crafted from steel and curved glass. 36 chandelier uses six 60-watt max E12 bulbs and the 48 chandelier uses 12 60-watt max E12 bulbs (not included). We recommend our Arhaus LED Candelabra E12 Bulbs (6610071B134). 36 chandelier has an adjustable drop length that ranges from 22.5-164.75. 48 chandelier has an adjustable drop length that ranges from 39.25-183.25. Can be mounted on a vaulted ceiling. Steel chain measures 144 long. Black fabric cord measures 150 long. Hardwired; professional installation required. Mounting hardware included. Chandeliers weighing more than 50 lbs. cannot be mounted alone to a standard outlet box and require additional bracing above the ceiling where they are to be installed. ETL certified dry for use indoors and in dry locations that are not directly exposed to excessive moisture and water. In order to protect the delicate glass of this collection, some assembly upon delivery to your home will be required.