{HEAD ~ A headlight} 1, for giving, selectively, a main beam and {TAIL ~ a dipped beam}, wherein the relative displacement changes the optical relationship between the reflector and the light source so as to change the illumination given by the headlight between the main beam and the dipped beam 
for giving
{ HEAD ~ A headlight } 1 , for giving , selectively , a main beam and { TAIL ~ a dipped beam } , wherein the relative displacement changes the optical relationship between the reflector and the light source so as to change the illumination given by the headlight between the main beam and the dipped beam
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH