Global Air - AC Pro PLUS Step Fan Controller

Fan speed and heater control in one silent unit

The Global Air AC Pro PLUS Step Fan Controller is a transformer-based controller that regulates an AC extractor fan while also driving a heater, giving combined climate management for a grow tent or grow room. Built with solid-state relays and digital controller technology, it moves between speeds silently - none of the loud clicking common to standard step controllers - and protects the fan motor from electrical stress. It holds temperature steady through both lights-on and lights-off, which matters most across veg and flower.

Key Benefits

• 5-step transformer fan speed control for smooth, reliable regulation
• Silent step transitions with no clicking noise
• Integrated heater control alongside fan speed for full climate management
• Holds ideal climate in grow tents and grow rooms
• Motor protection shields AC fan motors from electrical stress
• Built in Europe to high manufacturing standards

Temperature crashing at lights-off, then spiking at lights-on?

Temperature swings stress plants and cut yields - dropping too low during lights-off and rising too fast under the lamps. The AC Pro PLUS balances this by regulating fan speed and heater output together, holding a steadier temperature through the whole cycle to support nutrient uptake, healthy growth and better bud density in bloom across hydro, coco or soil.

How to Use

1. Mount the controller outside your grow tent or room for easy access.
2. Connect your AC extractor fan to the fan output.
3. Connect a compatible heater to the heater output.
4. Plug the controller into a suitable power supply.
5. Set your desired temperature.
6. The controller adjusts fan speed and activates the heater automatically to hold stable conditions.