Despite being less reflective than other materials that may be used in the light conversion sub assembly, the PTFE material unexpectedly produces an increase in luminous output, compared to other more reflective materials, when {HEAD ~ the PTFE material} includes {TAIL ~ a wavelength converting material} 
Despite being less reflective than other materials that may be used in the light conversion sub assembly , the PTFE material unexpectedly produces an increase in luminous output , compared to other more reflective materials , when { HEAD ~ the PTFE material } includes { TAIL ~ a wavelength converting material }
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