It is a different low beam graphic due to different fluting/pattern on the headlight lens. I've put up a comparison for the left headlight, and the placement of the circled section on the lens is the
easiest only way to determine the difference visually.
LHD (left hand drive)
--> RHT (right hand traffic)
RHD (right hand drive)
--> LHT (left hand traffic)
So, when you stay in front of the car looking at the headligths - if that triangular pattern/section is to the right on the lens - it is also for RHT (right hand traffic). And vice versa for LHT.