I just installed this cheap LED with a brightness of 4600 lumen, which is really great. Now I can finally work without falling asleep.

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But.

It's humming, faintly. Which is annoying. Any ideas on how to rectify this?

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[–] 30 points 3 months ago (3 children)

The humming is going to be its power supply, either a transformer-to-rectifier or switched mode power supply.

You could open it up and see what psu it uses, swap it out for one of same voltage but higher quality. If it's a transformer sometimes you can self-pot them in hot glue to cut down on vibration but you do so at your own risk when working with 240 mains.

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  • [–] [S] 9 points 3 months ago (2 children)

    Sweet! Unfortunately I have secured it to the wall with semipermanent double sided tape, and I'd rather not pluck it down at the moment. But if the humming will interfere with my work, I'll check out the insides! Duly noted on the safety risks! 🫡 Thanks!

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  • [–] 21 points 3 months ago (1 child)

    Before you dismount it from the wall, have you tried turning it on, then applying physical pressure at various parts of the outside of the light to see if the sound changes or disappears? Make sure its not a vibration that could be solved with a tiny bit of padding between two hard surfaces.

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  • [–] 17 points 3 months ago

    Any ideas on how to rectify this?

    Sounds like the LEDs are doing a great job of that already

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  • [–] 10 points 3 months ago (2 children)

    Now I can finally work without falling asleep.

    Err... isn't the noisy PSU helping you achieve your goal? :P

    🤣 2
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  • [–] 8 points 3 months ago (1 child)

    Have you tried humming along with it?

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  • [–] 8 points 3 months ago (2 children)

    It may operate quietly closer to one of it's operating temperature extremes. Have you tried heating or cooling the room? Maybe try -10 or 35°C?

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  • [–] 6 points 3 months ago (2 children)

    The LEDs do not hum. Their power supply does. Usually, it is caused by bad coils. I'd check which one is humming, and just replace it, but this might not be a method recommendable for anyone.

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  • [–] 6 points 3 months ago (2 children)

    Get a few CRT TVs. After a while you won't be bothered by background noise 🫠

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  • [–] 11 points 3 months ago (4 children)

    Sign it up for music lessons?

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  • [–] [S] 6 points 3 months ago (3 children)

    Any specific genre? 🤔 Don't leave me with a half assed suggestion PLEASE. 😂

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  • [–] 5 points 3 months ago

    It looks like a florescent tube, not LED, but I guess it's just a diffuser over LEDs?

    Florescent tubes can definitely make noise though...

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  • [–] 5 points 3 months ago

    cheap led

    You answered your own question

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  • [–] 1 point 3 months ago (1 child)

    If you get tinnitus, this little guy won't bother you at all.

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  • [–] 1 point 3 months ago

    My bathroom ceiling light was doing that also when it was installed. Then they replaced the power supply to a different kind and it stopped.

    Though in this case the electician bought a wrong kind power supply - it didn't come with the light fixture.

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