I want to wire a simple tungsten household bulb with a dimmer i.e. 3-pin 240v/3A plug - cable - dimmer - cable - bulb holder with bulb. I have a single way dimmer with two connectors. I have connected live to plug, live to dimmer connector, live from other dimmer connection and on to bulb holder. Neutral connected to plug and from plug to bulb holder. When I switch on at the mains the bulb lights but with the dimmer switched \\\'off\\\'. When I switch the dimmer \\\'on\\\' and rotate the switch nothing happens but the bulb stays on. Do I simply have a faulty dimmer or have I made a mistake? Thanks for any help.