I do believe it matters. Here for our LHD cars the beam pattern would be _ _, so the left side of the light is higher while the right corner is lower. So getting a RHD light would be like _/ _/, so your aiming higher on the right side for on coming traffic, and have less light for the left corner. Again dont know about these LED headlights, I guess they would be similar as it makes sense to have a _ or _/ pattern depending where you drive.