When I turn on the LED light, there is a high frequency sound, so what's the problem?
Or is it a characteristic of the original LED lighting?
2927 2016-06-28 Gentleman
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A. 1
No. I use LEDs at home, but I haven't seen such a phenomenon.
Gentleman 9 years ago 0
OK
A. 2
I think there is something wrong with the SMPS (Switching Mode Power Supply).
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