Thanks for the input guys , it would appear that the entire light assys are after market so I am undecided what to do as the standard headlight lamps dont fit.The current installation has 2 lamps on one mount ( the HID lamp and a light blue lamp for high beam ). The two lamps are on the same mount ,so appear inseperable. They are also wired so that the high beam lamp has 12v on both sides of the lamp at all times and when selected to high beam on e 12v is dropped for a ground is this in anyway normal ?. All in all a mess if I want to revert back to normal .