TA-350 is a transformer that allows electrical products made in Japan to be used overseas. If you are in the 220-240V area, which is commonly used in Europe and Asian countries such as the UK and China, you can run home appliances up to 350W, such as stationary game consoles and air purifiers. In consideration of safety, the case is made of metal, and is also equipped with a thermal protector and thermal fuse as safety mechanisms.