Beam converters

Wonder if any of our european members may be able to help. I've got lhd headlights, which have failed the MOT. I can't afford even 2nd hand units at the moment, but if I fit some beam converters it will pass. So if anyone could help telling me how to convert my lights over to right hand drive (as in if you were coming over to britain, you'd fit them)

My local car accessory & petrol station sells them, are they not just stickers?

yeah but they only have instructions for converting right to left hand drive, and I need the other way round