I will travel to Japan soon. What transformers and adapters should I bring?

See what electrical appliances you want to bring.

If you only bring a mobile phone, a laptop, a rechargeable razor and a camera with a power adapter, you can basically support the wide voltage of 100V-240V without a transformer. You just need to find a two-pin or three-pin conversion plug from the national standard to the Japanese standard.

If it is any other electrical appliance with a fixed voltage of 220V, you can choose to bring a beautiful low-power 1 10V to 220V transformer with UMI, which is safe and non-magnetic, and can take the plane to convert the voltage in real time, thus saving a lot of trouble.