Crafted from wrought iron and glass. Teardrop mercury glass shades showcase a warm copper exterior with a silver-finished interior. 48 linear chandelier requires 15 G4 LED bulbs (included). 54 linear chandelier requires 30 G4 LED bulbs (included). Adjustable drop length measures 21–128.5. Can be mounted on a vaulted ceiling. Compatible with dimmer switch. Clear silver plastic cord measures 10' long. Hardwired; professional installation required. 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 glass of this collection, some assembly upon delivery to your home will be required.