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 candle light arch is made by Michael Müller. Since the Michael Müller workshop is a small workshop all Müller candle arches are something special. LED bulbs illuminate the arch. Due to LED system please note that this arch does not work properly in 110 Volt electricity system (USA, Kanada, Japan) even with a transformer.