As the title suggests, I have a jdm blobeye with the xenon headlights but the lens on one of them is badly faded (yellowed) not sure if itll polish out or not so looking at this approach as a backup.

Is it possible to get a uk headlight and fit the jdm xenon headlight setup into it or are they completely different?

Also does anyone know of good headlight restorer as I'll try that first thanks.

 

If it's a blobeye then UK cars didn't have an HID equivalent. Halogen only.
You may get away with splitting the unit and changing the "glass" and keeping the HID reflector setup.

 

you can split the headlights by heating up the sealant and pulling apart, lots of people have done it search detango to remove the orange indicator lense.
this would be an easy fix if just the lense needs replacing

uk lights are completely different as xenons use a ballast for the bulbs