This is not a high CRI LED (at the moment) but gives an option towards more lumen output and better beam pattern with adequate 80 CRI due to it's unique hex shaped die. For round optics/reflectors, circular LED die shape will always give the ideal beam pattern, and 319B is closer to that regards. 


This is currently Nichia's highest performing single die 3535 LED. Up to 12% brighter and more efficient (~2% lower forward voltage) than 319A across the operating current range.


More Info:


Nichia 319B