Help connect a power supply with an input voltage of 120V

Vyacheslav asks:

Hello, please tell me, bought an electric fish knife abroad. On the power supply the input 120V is written. But in our sockets it’s 220. The question is, can this device be connected to our socket?
Photo attached.

The answer to the question:

Hello, Vyacheslav! For this power supply you need 120V in the network, you can not use it from the 220V network, judging by the appearance, it is generally transformer. But you can power it using a step-down transformer 220/120 (or 110) V. An example of such a transformer is Eleca KXT-050 It is 50 VA, you need 24 VA (12V × 2A) ...

You, in black and white, have written INPUT - 120V, OUTPUT - 12V. Why did you decide that it can work from 220?

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