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LED Humming


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I currently have LEDs in the house that hum quite a bit when they're dimmed.  The device that controls them is C4-DIN-8DIM-E.  Is there a better one that's meant for LEDs that would eliminate this?

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Use a different LED bulb or fixture. The hum is coming from the AC to DC transformer. The type of dimming the bulbs support is based on the transformer they have. Look at the specs on the bulbs vs what the the 8DIM-E supports.

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7 hours ago, TFlury said:

Use a different LED bulb or fixture. The hum is coming from the AC to DC transformer. The type of dimming the bulbs support is based on the transformer they have. Look at the specs on the bulbs vs what the the 8DIM-E supports.

Ah interesting.  Mind pointing me in the right direction of what a bulb that's compatible with the 8DIM-E looks like spec wise?

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1 hour ago, TFlury said:

Do you know if it is a v1 or v2 dimmer? I looked for the spec pages yesterday and only found the v2 spec page.

It's a v1 dimmer.  Do you know if v2 helps address any of these?

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The current style dimmers IN APD FORM (so not the essential line either) are generally much better at dimming LED than the old ones (note that the essential line is better than the old regular ones)- they were specifically designed for maximum compatibility.

They MAY help the humming, but as mentioned, the humming is usually caused be a transformer (note that ever LED bulb has a transformer as well. IF the bulb/transformer is not dimmable...well you can't be dimming them - and there are certainly 'dimmable' transformers out there that don't dim well either - so there is no guarantee that an APD dimmer will fix your issue.

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22 minutes ago, Cyknight said:

The current style dimmers IN APD FORM (so not the essential line either) are generally much better at dimming LED than the old ones (note that the essential line is better than the old regular ones)- they were specifically designed for maximum compatibility.

They MAY help the humming, but as mentioned, the humming is usually caused be a transformer (note that ever LED bulb has a transformer as well. IF the bulb/transformer is not dimmable...well you can't be dimming them - and there are certainly 'dimmable' transformers out there that don't dim well either - so there is no guarantee that an APD dimmer will fix your issue.

Got it and sorry a new to this question here but can you provide me links to the different dimmers you mentioned?  Is C4-DIN-8APD-E the one you're referencing?  I may play around with a few things to try and figure out if it's the LEDs or APD

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@CyknightHe has an old v1 8ch panelized dimmer. @mtvanc The dimmer Cyknight was talking about is an in wall for a single circuit. I do know old lutron units would die if yuo put a LED bulb in them so it is very possible the old dimmer just does not support it. The current gen of your dimmer is a C4-DIN-8APD-E.

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52 minutes ago, TFlury said:

@CyknightHe has an old v1 8ch panelized dimmer. @mtvanc The dimmer Cyknight was talking about is an in wall for a single circuit. I do know old lutron units would die if yuo put a LED bulb in them so it is very possible the old dimmer just does not support it. The current gen of your dimmer is a C4-DIN-8APD-E.

Ah I see, thank you!

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On 11/16/2022 at 7:10 AM, TFlury said:

@CyknightHe has an old v1 8ch panelized dimmer. @mtvanc The dimmer Cyknight was talking about is an in wall for a single circuit. I do know old lutron units would die if yuo put a LED bulb in them so it is very possible the old dimmer just does not support it. The current gen of your dimmer is a C4-DIN-8APD-E.

Ah fair enough.

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