Here is a quote from the resource I provided in the last post with its own source reference cited:
While LEDs are complex semiconductors that convert an electrical current into light, one of the advantages are that LED emitters can be modulated (turned off and on) at high speeds without degradation which thus favors PWM.
Reference: Light-emitting Diode (LED)
But seriously, that article was funny. I stopped at that BS about 'current reduction' vs 'pwm' because anyone that knows anything about LEDs knows that PWM is MUCH more damaging to LEDs because you are constantly turning them off/on to create the desired brightness,