Thus, {HEAD ~ the LED light unit} can conform to {TAIL ~ optical characteristics} for a vehicle lamp 
conform to
Thus , { HEAD ~ the LED light unit } can conform to { TAIL ~ optical characteristics } for a vehicle lamp
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH