Details Multi-ring frame is built of iron Glass prisms are made of K9 glass, used to make optical lenses and prisms Rated for twenty-one 25W max. E12 candelabra bulbs Bulbs included If brighter light is preferred, consider an LED bulb with a higher lumen output. Dimmer switch compatible 110-120V manufactured to US standards for US and Canadian markets Certified to Dry UL electrical standard: suitable for use indoors in dry locations not directly exposed to excessive moisture and water Hardwire Flushmounts 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 Requires professional assembly and installation by a licensed electrician. delivery service does not include assembly or installation. Wipe with a soft, damp cloth; avoid the use of all cleaners and abrasives, as they will damage the finish Dimensions Overall: 31½" diam., 20½"H Weight: 137 lbs.