Do you have a lever on each headlight? (I doubt it.) Usually the lever converts a RHD to a"flat" beam for travelling over in Europe for vacation or the like. If you are moving to the UK then you'll have to put in everything they tell you. Most likely they'll want RHD lights with the proper local certifications. The MoT testers are very picky.
By the time you ship it and convert it you may be better off selling local and buying local over there.

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