The light conversion sub assembly includes at least a portion that is {HEAD ~ a polytetrafluoroethylene material} that also includes {TAIL ~ a wavelength converting material} 
includes
The light conversion sub assembly includes at least a portion that is { HEAD ~ a polytetrafluoroethylene material } that also includes { TAIL ~ a wavelength converting material }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL