Thank you "hig 64" and "kbrownie" for such prompt and informative replies. I think I had better get a sparky in !!! ( I know my diy limitations) Will report outcome on the site for info of others who may experience a similar problem.
A couple of 12v/50w halogen bulbs have blown in my ceiling lights and I have replaced them with brand new halogen bulbs of the same type. When I switch the lights on one bulb does not come on and the other one comes on but only stays lit for a couple of second then go out! The other working bulbs ar...