Balance Ceiling Light is inspired by the elliptic orbit of a planet around the sun, a motion that is created by the harmony and balance of unseen forces represented with the glass and the light. Available in small and large sizes. Two 75 watt, 120 volt A19 medium base incandescent bulbs are required, but not included. Small: 18 inch width x 7 inch height x 18 inch depth. Large: 22 inch width x 7 inch height x 22 inch depth.