What kind of charging equipment does Thailand use?

The rated voltage in Thailand is 220 volts.

Guaranteed usable plug: two-pin flat plug.

Plugs that can be used in many places: two-pin round plugs and three-pin flat plugs.

Less commonly used plugs: three-pin (two) flat (one) round plugs.

Plug that can't be used basically: three-pin square plug

If you stay in a hotel, the sockets in the room are generally universal, and even some European standard plugs can be used. You can also ask the waiter to give you a universal terminal board.