All electrical items, unless otherwise noted, operate on 220V DC. To ensure full operation please use a converter, e.g. http://www.amazon.com/HDE-Universal-Voltage-Converter-Adapter/dp/B001AHTEEU This pyramid is a product made by Richard Glässer Seiffen. The impeller is turned by candle heat. More than 70 years of experience make Glässer Christmas Pyramids complete masterpieces.