Should I bring two types of charging adapter plugs when traveling in Switzerland and Germany?

You only need to bring a German standard conversion plug.

The German standard plug (grounding) manufacturing standards are implemented in accordance with CEE 7/16 standards.

The two cylinders are not grounded, the span is 19mm, and the cylinder diameter is 4mm. It is used in most European countries: Germany, Austria, Italy, the Netherlands, Belgium, France, Spain, Portugal, Denmark, Norway, Sweden, Finland, Greece, Turkey, Israel, Poland, the Czech Republic, Slovakia, Hungary, Romania, Bulgaria, Russia, and Vietnam.

Also used in the Middle East, most of Africa, South America and many developing countries. All imported equipment entering EU countries must carry out CE certification for power cords, plugs and sockets in strict accordance with EU standards. This is necessary and mandatory.

Extended information

Notes

1. It does not have the transformer function, and the 200V voltage output is also 200V voltage.

2. Does not have USB output. That is to say, you need to bring your own charger to charge when going abroad.

3. Suitable for use with low-voltage electrical appliances. It is strictly prohibited to use the following items: hot water kettles, refrigerators, high-power TVs and other high-power electrical appliances. The use of this product by high-power electrical appliances may cause damage to the product. Short circuit damage, in severe cases, may cause damage to electrical appliances.

4. The current it can carry is within 16A. Current exceeding 16A will cause safety hazards. It is recommended that high-voltage electrical appliances and electrical appliances used in industrial production should not be used casually.

Baidu Encyclopedia-German Standard Plug