Nuvola SO Power Pendant features White cloud like fire proof fabric is illuminated from inside and powered by two mechanical arms and an internal motor. Chrome finish. Available in two sizes. 24 watt, 120 volt CF?Medium compact fluorescent bulbs are required, but not included. Mounts to a standard 4 inch junction box. ETL listed. Large: 25.59 inch width x 19.68 inch height x 59.05 inch length. X-Large: 49.12 inch width x 31.49 inch height x 108.26 inch length.