Thailand A, B, C  220 V 50 Hz

Thailand uses 220 V, type A- and type B-compatible plugs and sockets were originally adopted in Thai Industrial Standards (TIS) 166-2519 and 166-2535 in 1976 and 1992. However, type C plugs are also widely used, and a hybrid socket is almost universally found. Usually the socket is a combination of types B and C, although ungrounded type A/C hybrids are still commonly found in rural areas and older installations.