Just wanted to say a massive thank to the forum. Clear pictures here and instructions meant when mine went I popped the bulb out fairly easily, checked the bulb and holder, fine so cut the wires and soldered the updated holder in and while I did have to move the battery to cut the wires it all went back in and is working. Even used my new heat gun to shrink wrap the wires.
What a relief.
Thank you all
Toby