Hopefully I can help..
Are you just replacing the one or both Headlamps?
both headlamps which i want to get from china
If your replacing both Headlamps from right hand drive to left hand drive for the focus model above then their shouldn't be any reason why they should'nt work..Its only the beam direction as per the lense/reflectors that differs between the RHD and LHD the assembly is the same - when and after fitting they must re-checked for proper alignment usually any MOT station that has the equipment to check headlight aim direction etc....I do hope this helps.
so i can have the alignment? because i dont want to be pulled over by the police