How many volts is the outlet voltage in Thailand? Is it the same as in China?

Thailand also has a voltage of 220v, so household appliances can be used without additional transformers.

But the plug is slightly different. The jack on the wall in Thailand has only two phases, not three. If your appliance is a two-pin plug, whether it is round or flat, you can plug it directly, no problem. But if it's a three-way plug like a computer, it can't be plugged directly into the wall. You have to bring a converter or a small patch panel.

Generally, three-star hotels and convenience stores in Thailand provide patch panels, but just in case, you can buy a small patch panel with three or four plugs and take it with you without occupying space.