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The Home Smithy
The Home Smithy, Home Appliance Technician
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Experience:  30 years repairing appliances
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I live in the Netherlands. How many Watts must a device to

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I live in the Netherlands. How many Watts must a device to adapt 230V to 110 V be capable of handling so I can use my CPAP safely in the USA?

Hi. I'm Smitty. I am a professional appliance repair consultant here to help you diagnose, and repair, your appliance.
This depends on the wattage required by the unit. There should be a voltage rating on the manufacturers label. It will have the units model number, serial number, voltage, cycles per second (Hz), and the wattage, or amperage listed on it. You can then determine if the unit will handle it.


Customer: replied 3 years ago.

That's just it, it don't specify the Watt amount. It DOES say


100-115V 1.27A (1.43A Max) 50-60/400 Hz



220-240V 1.07A (1.21A Max) 50-60Hz

164.45 watts is what you need to operate the unit with the converter.

You can use this conversion calculator to get the watts from the information you have on the label.


Let me know if you have additional concerns. I will be happy to address them for you.

If not please select a positive rating at this time.

Thank you.

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