Quick Summary
The Variispeed Fan Speed Controller is a black fan speed controller for inline intake and extraction fans. It gives variable speed control and is stated to be for inline intake and extraction fans only.
The controller is not suitable for fans above 300 W or for fans that already have built-in fan speed control, including switched speed. If a fan shows signs of struggling, it should be turned back up until it runs smoothly.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Product type | Fan speed controller for inline intake and extraction fans only. |
| Colour | Black. |
| Control type | Variable speed control for adjusting fan speed. |
| Maximum fan power | Not suitable for fans higher than 300 W. |
| Compatibility limit | Not suitable for fans that already have built-in fan speed control, including switched speed. |
What to Compare Before Buying
- Fan type: This controller is for inline intake and extraction fans only. Check that your fan matches this type.
- Power rating: It should not be used with fans above 300 W. Confirm the fan’s rated power before choosing.
- Built-in speed control: It is not suitable for fans that already have built-in fan speed control, including switched speed.
- Required speed range: Variable speed control is the key feature, so compare whether you need manual adjustment rather than on-board speed switching.
Compatibility, Size and Fit
Compatibility depends on the fan itself rather than a physical appliance size. This controller is intended for inline intake and extraction fans only, and it must not be used with fans above 300 W or with fans that already include fan speed control.
Before You Decide
Check that your fan is an inline intake or extraction fan, confirm it is rated at 300 W or below, and make sure it does not already have built-in speed control. Follow the manufacturer’s instructions and use the mains switch to turn the fan off.
