Rated for one 40W max. E27-base bulb Bulb included If brighter light is preferred, consider an LED bulb with a higher lumen output. Dimmer switch compatible; a mechanical dimmer is recommended 110-220V manufactured to US standards for US and Canadian markets Certified to Damp UL electrical standard: suitable for use indoors, such as bathrooms where it is subject to moisture and in sheltered outdoor areas Hardwire Requires professional assembly and installation by a licensed electrician. Wipe with a soft, dry cloth; avoid the use of all cleaners and abrasives, as they will damage the finish Dimensions: 12cm W, 71cm H.