Global Air - AC Pro Step Fan Controller

Smooth, silent 5-step control for your AC extractor fan

The Global Air AC Pro Step Fan Controller is a high-quality transformer-based controller for regulating AC extractor fans in grow tents and grow rooms. Built with solid-state relays and digital controller technology, it moves between speeds smoothly and without the loud clicking common on older step controllers, and its robust European-built transformer protects fan motors from electrical stress and voltage fluctuations. Consistent airflow is essential indoors, where good ventilation underpins plant health, nutrient uptake and strong yields through veg and flower.

Key Benefits

• 5-step transformer speed control for precise ventilation adjustment
• Silent transitions between speed settings with no clicking noise
• Solid-state relay digital control for reliable, efficient operation
• Protects fan motors from electrical stress and voltage fluctuations
• Simple dial operation for quick speed changes
• Durable European-built construction for long-term reliability

Fed up with clicking, unreliable fan speed control?

Poor ventilation lets heat, humidity and stale air build up, which slows vegetative growth, cuts nutrient uptake and raises the risk of mould during flowering. The AC Pro Step Controller lets you fine-tune fan speed to match conditions, holding steady airflow and temperature across the grow cycle to support healthier plants, better transpiration and denser buds in hydro, coco or soil.

How to Use

• Mount the controller outside your grow tent or room for easy access.
• Plug your AC extractor fan into the controller's fan output socket.
• Connect the controller to the mains power supply.
• Select the desired fan speed using the dial.
• Adjust the speed as needed to hold stable temperature and airflow.