Fan Speed Controller for Precise Ventilation Control

The Active Air Duct Fan Speed Adjuster gives growers exact control over airflow, reducing noise and power draw while extending fan life. Designed specifically for centrifugal and inline fans, its sensitive electronics provide smooth, flicker-free adjustments that protect motors and stabilize your environment.

Built to Protect Your Equipment

An internal electronic auto-resetting breaker, state-of-the-art circuitry, and robust construction help prevent overload and premature wear. Rated for up to 500W (5A) at 100–120VAC, it’s ideal for most small to mid-size inline ventilation setups.

How It Helps Growers

By tuning fan RPM to the room’s needs, you’ll minimize temperature swings, reduce negative pressure, and cut unnecessary noise—key wins for grow room ventilation and HVAC efficiency. Pair it with carbon filters and ducting to fine-tune pressure and airflow through your system.

Uses & Compatibility

Best for ball-bearing inline/centrifugal fans used with ducting, filters, and air-cooled hoods. Not for booster fans or “squirrel cage” blowers. Compatible with Hydrofarm/Active Air inline fans and other brushless centrifugal models within the power rating.

Composition & Specs

• Internal electronic auto-reset breaker

• 100–120VAC input; 500W (5A) max load

• Compact handheld controller with knob adjustment

• For ball-bearing inline/centrifugal fans only