hi will this be suitable?
http://www.screwfix.com/prods/24623/Electrical-Supplies/Switches-Sockets/Dimmers/Dimmer-Switch-2G-2W-2-x-400VA&cm_mmc=Google-_-Electrical-_-Dimmers%20-%20White%20Dimmers-_-dual%20dimmer%20white?P=P&gclid=CKzW14P-4KACFSaElAod9RFZEg&source=aw