How to test with Chinese multimedia if the heater alliments is 220v or 110v

 

You measure the resistance of the element, and then use Ohm's law to determine if the heater current/power rating is closer to being met with 220V or 110V.
Note that the cold element resistance is likely some less than the hot resistance, so the calculation will give an approximation to the closest voltage value.

 

How to test with Chinese multimedia if the heater alliments is 220v or 110v

How to test heater elements with a multi-meter to tell if they are 220v or 110v? You need to know the cold resistance of each type of heater element you are testing. The resistance values will vary by the power of the element and the recommended heater voltage.




Some random charts from a web search. YMMV