A twisting optical illusion. The Caledonite Ceiling Lamp is a study in contrasts. Twine-wrapped circles move in curving geometric symmetry around a two-pronged iron chandelier reminiscent of a Da Vinci sketch. Bulbs not included, Bulb sold seperately, Max Watt 25 W, Size E12, Type B35. UL approved and listed. Color Natural Finish Metal Product Cover Upholstery Material or Type of Metal Twine 3 25W Type B35 Bulb s Bulb s Not Included Socket Size E12 Dimmer Yes add one dimmer switch Part of the Caledonite Collection No Assembly Required Safety Rating True Overall Dimensions 16.9 D x 16.9 W x 63 H Base Dimensions 5.12 Dia x 0.98 H Shade Dimensions 16.73 H Shade Diameter Top, Bottom 16.54 Item Weight 7 lbs. Please note that this product is designed for use in the United States only 110 volt wiring , and may not work properly outside of the United States.