Measuring and Preventing the Flicker of LEDs

Flicker behavior isn’t inherent to LED light itself. On the contrary, when running the LED on a DC power supply, without controlling its light output, it would not generate any flicker and give a nice and stable light output, says Steven Goetstouwers. However when building the LED light into a luminaire multiple levels of electronics are added, such as switching the AC power to a DC power and the use of Pulse Width Modulation to control the light output.