Bhutan has got a good electricity supply. There are three plug types- C, D, and G. Plug C- which has two round pins Plug D- which has three round pins in a triangular pattern Plug G- which has three rectangular pins in a triangular pattern Bhutan operates on a 230V supply voltage and 50Hz. If you are from the US, Canada, and countries in South America, you might need a voltage converter in Bhutan because the standard voltage in these countries ranges from 100V-127V.