I opted for the Trotec TTK 70 S, because he for nearly 100 ordinary 20L / 24h. is intended to create. I do not know why the Merheit chose the Duracraft DD TEC10E because that creates only 10L / 24h. I have withdrawn because the manual does not say anything about the device 1 star. I did then however requested directly from the manufacturer. The Red Automatic lamp flashes when the Agregat de-iced the cooling coils, it is in the manual nothing to read. Nor, what is the difference between automatic and continuous operation. In automatic mode, it is dehumidified to about 55% and in continuous operation just as long as the unit is running. With the automatic mode however, I am not satisfied, including separate my meter still indicates 70% air humidity and the unit switches off because already, in which case it consumes about 50W for always running fan. In continuous operation, then off you many times better and faster, in about 2 hours. Then, the value drops to 60% where you can then programieren the off 2-6 hours. However, I have my moisture meter is not checked whether it also measures properly.