Difference Between AC and EC Extractor Fans

Both AC (Alternating Current) and EC (Electronically Commutated) extractor fans are used for air exchange in grow rooms, but they operate differently and offer distinct advantages.

AC Extractor Fan (Alternating Current)

• How It Works: Runs on standard alternating current from the power supply.
• Speed Control: Limited; usually requires a separate fan speed controller.
• Efficiency: Less efficient; uses more energy due to constant power draw.
• Durability: Simple design but can wear out faster over time.
• Noise Level: Louder due to inefficiencies in motor operation.

EC Extractor Fan (Electronically Commutated)

• How It Works: Uses a mix of AC and DC power, with an electronic circuit controlling the motor.
• Speed Control: More precise and built-in speed control without extra controllers.
• Efficiency: Up to 70% more energy-efficient than AC fans.
• Durability: Longer lifespan due to less wear and tear.
• Noise Level: Quieter operation due to efficient motor design.

Which One Is Better for a Grow Room?

EC fans are the better choice for grow rooms because they are quieter, more energy-efficient, and allow for better speed control, making them ideal for maintaining a precise climate. However, AC fans can still be a good budget-friendly option for simple ventilation setups.