Variable resistor for mains appliance

[Law]

Dear All,

I hope that someone can advise me, please.

I have a extractor fan, like this. Is there something that I could plug it into so that I could vary the speed?

https://i.imgur.com/xWIw2dk.jpg

[Light Dependant Resistor]

You could use a Thyristor ( SCR ) or a Triac circuit to control the fan speed. One is detailed here using a arduino kit https://circuitdigest.com/microcontroller-projects/ac-fan-speed-control-using-arduino-and-triac
but there are other versions https://www.ebay.com.au/itm/220V-SCR-Motor-Fan-Variable-Thyristor-Electronic-Voltage-Regulator-Controller/303542368258

[Law]

That's great!

Thank you very much for this.

I'll take a look and will try it out.