Electricity in Hong Kong is 220 Volts, alternating at 50 cycles per second (220V/50Hz). The majority of electrical outlets have a British three-pin rectangular blade plug that has a protective fuse inside to protect cords from high-current circuits.
China Hong Kong area offers electricity 220V, 50HZ, AC.
China mainland offers electricity voltage with 220V, 50HZ, AC.
Most of the hotels in Hong Kong or China have both 110V and 220V electrical outlets in the bathrooms, though in the main portion of the guest room, only 220 V sockets are available. Many hotels in Hong Kong or China offer travelers electric transformer, please contact hotel information desk for help. Or you can buy them at shopping malls.