Normally, the human eye can perceive light flicker with a frequency of 70 Hz, but it will not perceive it at a frequency higher than this frequency. Therefore, in the LED dimming driver lighting application, if the pulse signal has a low frequency component with a frequency lower than 70 Hz, the human eye will feel flicker. The flicker is generally caused by the loop current not reaching the sustaining current.

  The lifespan of the LED itself is very long, PWM dimming will not damage the expected life of the LED; even because the PWM dimming led power supply helps reduce the heat generated by the LED, it can actually help to extend the expected life of the LED. Of course, in the system design, it is necessary to effectively detect and control the temperature of the LED to ensure the reliable operation of the LED, reflecting its advantages of long life and low maintenance cost.

The above briefly explained the impact of pwm dimming from the two aspects of led strobe and the impact on the life of the lamp. It can be seen that the impact of pwm dimming is positive in many aspects. The SMARTS PWM dimmable led driver is of good quality and no frequency dimming. Flash, suitable for indoor use, more about PWM 100W dimmable led driver, please send your inquiry to steven@smartselectronic.com.cn