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AVEC led bar making high pitch noise.

Discussion in 'Lighting' started by Sna, May 20, 2016.

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May 20, 2016 at 1:27 PM

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Sna [OP] Well-Known Member

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I just wired my AVEC 30" led lightbar to an aux fuse panel (RTMR) and now when I turn the light on I get a high pitch noise coming from the lightbar area. Any ideas?

FYI- When I first got my lightbar I tested it using the wiring, relay and switch that came with it, and there was no sound. This is noticed while I'm parked in the garage. Thanks

Last edited: May 20, 2016

Sna, May 20, 2016

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May 23, 2016 at 4:19 PM

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o0oSHADOWo0o Just lurking in the darkness

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Just a few LEDs...

The light bar most likely uses a switching power supply especially if you can vary the brightness. The result is you might hear high frequency noise generated by the transistors switching on and off. It's normal.

o0oSHADOWo0o, May 23, 2016

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Sna[OP] likes this.

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