Power converters are roughly divided into 12 types of power converters according to the number of people and countries used in the world. The types and parameters of power converters in various countries are for reference only.

　　1. U.S. and Japan standard 　　
The power converters in the U.S. and Japan are characterized by the vertical distribution of double and triple flat heads, the voltage is 100-120V, and the frequency is 50/60Hz;

      2. EU standard 　　

The power converter in the EU area is a double round head, the voltage is 230V, and the frequency is 50Hz;

　　3. Indian standard 　　
The power converter in India is a three-round head, the voltage is 230V, and the frequency is: 50Hz;

　　4. Pan-French standard (European area) 　　
The power converter in the Pan-French area is a three-round head. Now most areas in France use this kind of power converter, the voltage is 230V, the frequency is 50Hz;

　　5. German standard (European area) 　　
The power converter in the German area is basically unified with the later EU standard, in the form of a double round head, the voltage is 230V, the frequency is 50Hz;

　　6. British standard, British standard 　　
Britain and the previous British colonial areas including Hong Kong, Malaysia, Singapore, etc. have followed the colonial power converter standard, which is a three-head type with a voltage of 230V and a frequency of 50Hz;

      7.Israel standard Israeli power converters are mainly used in Israel.
 They are flat heads whose live and neutral lines are similar to the slope. The ground wire is a flat head type. Among the electrical parameters, the Israeli standard is the most special, the voltage is 220V. , Frequency 50Hz';

　　8. Australian and Chinese standards 　　
Australia and China have the same type of socket, three flat-head type, voltage 220V, frequency 50Hz;

　　9. Swiss standard 　　
The Swiss power converter is a type with three round holes almost parallel to a straight line, voltage 230V, frequency 50Hz;

　　10. Danish standard 　　
 The Danish standard power converter is used in Nordic countries. The live and neutral wires are round holes, and the ground wire is a square hole type, voltage 230V, frequency 50Hz;

　　11. Italian standard 　　
Italian power converter is a parallel three-hole type, voltage 230V, frequency 50Hz;

　　12. South African Standard 　　
 South Africa's power converter live and neutral wires are round holes and the ground wires are square holes, voltage 220V/230V, frequency 50Hz.