The Global Air AC-EC Fan Speed Controller is a versatile digital controller designed to manage both AC and EC ventilation fans in hydroponics and indoor growing environments. By automatically adjusting fan speeds based on temperature and humidity levels, it helps maintain stable conditions inside a grow tent or grow room throughout the entire growing cycle.
Unlike many basic fan controllers, the AC-EC unit allows growers to run AC intake fans and EC extraction fans together from one controller. It also features separate day and night environmental settings, automatically switching between them using a built-in light sensor. This allows growers to maintain the ideal climate for plants during vegetative growth and flowering without constant manual adjustments.
Key Benefits
• Controls both AC and EC inline fans from one controller
• Automatically adjusts fan speed based on temperature and humidity
• Separate day and night environmental settings
• Built-in light sensor detects lights on/off periods
• Helps prevent high humidity that can cause mould or mildew
• Supports mixed ventilation setups with AC intake and EC extraction fans
• Two fan sockets for intake and extraction systems
• Compatible with Systemair EC fans and Hyper Fan V2 (with adapter cable)
Technical Specifications
• Maximum Total Load: 10A
• Maximum Load per AC Socket: 5A (1150W)
• Two fan sockets: Intake and Extraction
• EC fans connected via controller cables (not powered by controller)
How It Solves Grow Problems
Maintaining stable environmental conditions is one of the biggest challenges in indoor growing. Temperature and humidity fluctuations can slow vegetative growth, increase the risk of mould during flowering, and reduce overall yield.
The AC-EC Fan Speed Controller constantly monitors grow room temperature and humidity, automatically adjusting fan speeds to maintain the correct environment. Increased airflow removes excess heat and humidity, while reduced speeds maintain quiet, efficient ventilation when conditions are stable.
This balanced airflow helps prevent humidity-related issues such as powdery mildew and botrytis during the bloom stage, while ensuring plants receive the fresh air needed for strong growth and efficient nutrient uptake.
Kit Contents
• 1 × G.A.S AC-EC Fan Speed Controller
(EC control cables sold separately)
How to Use
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Install the controller in a dry, accessible location near your grow tent or grow room ventilation system.
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Connect your AC intake fan and AC extraction fan to the controller sockets (maximum 5A per socket).
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Connect any EC fans using the appropriate controller cables or adapters.
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Place the sensor probe at canopy height inside the grow space.
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Set your desired temperature, humidity, and fan speed parameters for both day and night periods.
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The controller will automatically adjust fan speeds to maintain stable environmental conditions.
Using a controller like the AC-EC helps create a balanced climate that supports healthy plant growth, strong flowering development and improved yield in hydroponic systems, coco or soil growing environments.
