The CLOUDLINE PRO S8 is a highly performant ventilation system built to be both efficient and silent no matter the speed. It features a 10-speed fan controller that’s compatible with all UIS controllers with intelligent programming. The motor is PWM controlled making it quiet and energy efficient in environments with high static pressure applications. The dynamic climate and time-based programming let you customize the grow space with ease. This IP44 unit is durable and resistant to external factors such as liquids and dust. This inline fan can be installed in all directions without any limitations in performance due to the mixed flow design with a stator blade and dual hydrodynamics with circles. The backup memory will retain the last settings in case of power cuts. The Cloudline Pro S8 inline fan is suited for up to 150x300x200cm (5x10x6.5 ft.) areas. Need more power? Consider the Cloudline Pro T10, which suits up to 240x240x200cm (8x8x6.5 ft.) areas. Need even more power? Consider the Cloudline Pro S12, ideal for 300x300x200cm (10x10x6.5 ft.) areas.