2-core power plug: As the name implies, 2-core power plug has two inserts or two pins. The specific inserts or pins are different in each country. For example, China’s is two inserts, and Europe’s is two round pins.

3-core power plug: As the name implies, the 3-core power plug has 3 pins or 3 pins or 2 pins or 2 pins plus a ground hole. Such A STRUCTURE IS MORE COMPLEX THAN THE 2 core power plug, the size of the pin and the diameter of what standard have great requirements, length and the distance between the pin are considered factors.

Multi-core power plug: this multi-core power plug is more complex. What 4-core power plug and 5-core power plug are used in specific equipment according to the requirements of customers.