Ltpgtfantasia wall mounted lighting dimmer requires twin and earth cabling and fits into a standard 35mm deep single gang box maximum power rating is 200 watts and one controller is required per fan please note it is not possible to wire a fan motor into a standard variable dimmer switch only a fantasia stepped speed controller can be used to operate the fan speeds from the wallltpgt ltulgt ltligtcolour polished brassltligt ltligtfits into a 35mm deep single gang