Why should I bring a converter? GOV.cn Friday, August 26, 2005 Throughout China (including Hong Kong), 220 volt/50 cycle is used. Appliances designed to operate at 110 volts will need a Converter, although some 4 & 5 star hotels are wigreen for use of 110-volt electrical appliances. Two-phase and three-phase sockets are commonly used in hotels. You may also need an adapter plug in order to use your electrical appliances. In case you forget it, try to ask the room service.   Editor: Chen Feng Source: Beijing.gov.cn