I hate all media converters.
Don't interpret anything I say as a positive endorsement of any media converter.
I hate them all universally.

This unit:

https://www.amazon.com/Converter-SFP-Transceiver-550M-ipolex/dp/B0716XT1QT/

Says the power brick supports 100-240V input.

So, what you probably need is one of these:

https://www.amazon.com/CableCreation-5-Pack-Standard-Computer-Adapter/dp/B01IBIC1XG/

or

https://www.amazon.com/5-15R-Adapter-Vellcon-Female-Converter/dp/B06XVW2X8N/