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• 3 Gear Speed Regulation: Our fan speed controller can correctly and precisely adjust the speed of centrifugal fans without causing the motor to hum.
• Easy to Use: Plugs directly into an outlet and no messy wires. You also have the option to use with an extension cord. You can easily adjust your fan’s speed with a simple turn of a knob.
• Durable: This unit is ultra-compact. Built-in grounded control outlet. These controllers are more sensitive than any on the market, and are compact and built to last.
• Suitable for Inline Fans: The speed controller makes an affordable and efficient way to create the optimum environment for your growing needs.
• Warning: Don’t use it on brushless type motors. Don’t use it with the fans exceed 3 amps. The work temperature can’t exceed 40℃/104℉, otherwise the controller maybe overheat.