What's wrong with the high frequency sound when using LED lights?

Hobby

When I turn on the LED light, there is a high frequency sound, so what's the problem?

Or is it the characteristic of the original LED lighting?


  191 3   7 years ago

pu1. I use LEDs at home, but I haven't seen anything like that


2017-11-25

pu2. I think there's something wrong with the SMPS (Switching Mode Power Supply)


2017-11-25

pu3. Thank you!!


2017-11-25


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