As for the spectral reflectance, it is what is also prescribed in JIS Z8105, where the reflectance of {HEAD ~ light} of {TAIL ~ a specific wavelength region} is usually expressed by percentage 
of
As for the spectral reflectance , it is what is also prescribed in JIS Z8105 , where the reflectance of { HEAD ~ light } of { TAIL ~ a specific wavelength region } is usually expressed by percentage
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH