Conclusion
Before deciding on a wallbox and therefore a specific charging power, the supply cable should be checked. For cost reasons, it may make sense to choose a lower charging power if laying a new cable is too expensive or if very high demands are placed on a cable. In this case, a lower charging power can save money both on the supply cable and on the wallbox itself. The disadvantage, however, is the longer charging time for the electric car. But whatever you decide: It can't hurt to know your options in advance.