Standard version: On/Off via light switch or separate switch. Operation in either stage 1 or stage 2. Two-stage operation using a commercial double-throw switch. Speed is controllable. This intelligently programmed small room fan is designed for the most demanding applications, featuring 2 performance levels. It has a concealed intake through a design cover for air extraction, combining large volume with high pressure. It carries the VDE-GS mark and has a protection class of IP X5 for safety in the bathroom, along with protection class II. It includes thermal overload protection and is suitable for continuous operation. The color is similar to RAL 9016, and the housing is made of impact-resistant plastic. The motor is energy-saving with robust, maintenance-free ball bearings, also suitable for continuous operation. Mounting instructions indicate compatibility with ECA Vorgangermodellen DN 150, as the mounting holes and cable entry are flush-mounted in the same place. Wall and ceiling mounting is possible, and the electrical connection can be either surface or flush mounted.