Very good and enlightening (no pun intended) - lot’s of so-called technical articles are written by reporters who have no idea of what they’re writing about. One day they do sports, the next real estate, then on LED’s turning paint brown. BTW, lots of planes are switching to those white LED’s in their landing/taxiing lights. You can see them daytime a lot further out than regular lighting.
It is my understanding that one of the reasons LED’s are more efficient is that they do not waste energy producing light outside of the visible spectrum (compared to other lighting techs).