Namely, the fact that power supply parameters can differ significantly from those in one's own country. In the best case, you will have to deal with increased voltage and fix problems on the fly. And in the worst case, the meeting will be ruined and you will most likely not be able to persuade a potential partner to repeat the demonstration.
Putting the result of years of development, and sometimes a whole life, at risk is an unacceptable luxury. Accordingly, it is necessary to buy an optimal voltage stabilizer in advance. This device must satisfy several conditions.
First of all, it is desirable that the 7-kilowatt carrier of civilization fits into a compact case of 350x420x160. Then you will not have to order an extra baggage seat. Secondly, universal support for the widest possible range of input and output parameters is needed. That is, roughly speaking, the device must be able to convert, protect and stabilize when plugged into an outlet in any country in the world. Naturally, the more options the device supports, the higher the cost.
However, it is hard to imagine that negotiations will take place simultaneously in different countries of the world. So, you can think about a model that only satisfies part of the requirements. For example, to begin with, it is good to use a portable stabilizer for the dacha. The optimal voltage stabilizer for dacha conditions is the SNPTO-5.5Sh or SNPTO-5.5Shn, which, in general, can be transported with you to connect prototypes and demonstrate unique operating principles.
As described in numerous memoirs of successful people and current owners of huge corporations, the beginning of work almost always depended on some trifle. And if circumstances turned out favorably, things went uphill confidently.
But can you trust your own success to random factors? Isn't it better to take care of the little things in advance, especially since the price is not so high and, at least, you will not have to worry about the voltage in the electrical network of a foreign hotel or exhibition complex.
_