There is really not much to write about this inverter. He works and supplies 230V. The housing is made of plastic. But for use in mobile homes, caravans and boats it is only for use when it is encapsulated soundproof. The fan is too loud even with a friendly approach. What Waeco was thinking, is incomprehensible. Conclusion, who wants to use the inverter in the caravan or motor home, should have good nerves. Incidentally, the fan is already running on at very low loads. Therefore only 3 stars because in the caravanning area of limited use.