Can You Use a Japanese Automatic Mahjong Table in the U.S.?

Conclusion: You Need a 120V to 100V Step-Down Transformer

The table can be used in the United States, but it should not be connected directly to a standard U.S. outlet. Instead, please use a 120V to 100V step-down transformer.

The setup is simple:

Why a Transformer Is Needed

The plug shape used in Japan and the United States may look similar, so the power cord may physically fit into a U.S. outlet. However, the voltage is different.

A Japanese 100V appliance connected directly to a 120V outlet may receive more voltage than it was designed for. This may increase stress on internal components, motors, and electrical parts over time.

To use the table safely and reliably, we recommend creating the same 100V environment as in Japan by using a proper step-down transformer.

What Type of Transformer Should You Choose?

We recommend checking the following points when choosing a transformer:

• 120V to 100V step-down transformer
• At least 500W capacity
• 1000W recommended if you want extra margin
• Designed for home appliances, not only travel use
• Good customer reviews on Amazon.com or other retailers

If you want the safest and simplest choice, a 1000W model is recommended. If you want to reduce cost, a 500W to 750W model may also be an option, as long as it has enough capacity for your table.

Recommended Transformer Options

MJ Mall does not sell transformers directly. However, customers in the United States can usually find suitable step-down transformers on Amazon.com.

Below are example product types to consider. Please check the latest price, stock status, specifications, and reviews before purchasing.

Important: Do Not Use Only a Plug Adapter

A plug adapter only changes the shape of the plug. It does not change the voltage.

Even if the plug fits into the outlet, please do not use the table with only a plug adapter. A voltage transformer is required to step 120V down to 100V.

Frequently Asked Questions

Do I need electrical work?

No. In most cases, no electrical work is required. You simply connect the transformer between the wall outlet and the mahjong table.

Can I use a travel converter?

We do not recommend small travel-only converters. Please choose a transformer designed for home appliances and continuous use.

Is 1000W required?

Not always. A 500W to 750W transformer may be enough depending on the model and specifications. However, 1000W gives more margin and is easier to recommend if you want a simple, safe choice.

Does frequency matter?

AMOS home automatic mahjong tables are designed for 50/60Hz use. Since the United States uses 60Hz, frequency is generally not the main concern. The key point is voltage.

Final Thoughts

Japanese-made AMOS automatic mahjong tables can be used in the United States, but a proper 120V to 100V step-down transformer is recommended.

If you want a simple recommendation, choose a 1000W transformer. If price is a concern, 500W to 750W options may also work, as long as the transformer is suitable for the table and designed for home appliance use.

If you are unsure which transformer to choose, please contact us before purchasing. We will be happy to help you check the basic requirements.

View AMOS Automatic Mahjong Tables at MJ Mall