i got a squirel cage fan 220v i like to use a speed switch on will this one work
http://www.ebay.com/itm/DC-51-DC-90V-6-Terminals-Motor-Speed-Controller-AC-220V-/321057018799
or is there better options
http://www.ebay.com/itm/DC-51-DC-90V-6-Terminals-Motor-Speed-Controller-AC-220V-/321057018799
or is there better options