The Helios Fans WS is a control switch designed to reverse the direction of air flow in axial high-efficiency fans. It can be installed either on the surface or in a flush-mounted socket using fixing screws (m³, 60 mm spacing). The unit includes a built-in indicator lamp for clear operational status. Its housing is made of durable light grey polymer and offers protection class IP 54 for surface-mounted applications and IP 30 when flush-mounted, ensuring reliable operation in various environments.