Rhino EC Dimmer The Rhino EC Dimmer is a simple manual speed controller designed for use with Rhino EC ventilation equipment. Built for growers who want direct, hands-on control, this compact dimmer allows you to adjust fan speed smoothly to match your environment’s airflow needs. Ideal for fine-tuning extraction or intake performance, the Rhino EC Dimmer helps you manage temperature, humidity, and air exchange without complex programming. It’s a reliable, plug-and-play solution for anyone running Rhino EC fans and wanting quick, precise control over ventilation strength. Key features Manual EC speed controller for Rhino ventilation equipment Smooth, adjustable fan speed regulation Simple plug-and-play operation Compact design for easy placement or wall mounting Ideal for controlling airflow in tents and grow rooms Compatible with Rhino EC fans and EC Ultra range