Cree led buzzing

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tbakelis

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I've been putting the cree cr6 led module sold from big orange in for a couple years now but I've noticed on a few jobs of late that there is a slight buzzing that occurs when using an led dimmer. I don't know the technical answer to why this is happening. Anyone?
 
Possibly the enamel on a step down transformer breaking down letting the wafers of core to vibrate to the extent of being audible? As with most transformers over time from heating effects.
 
The CR Series is an amazing combination of price and performance. Built upon technical innovations in optical, electronics, mechanical and thermal design, the CR Series provides amazing color accuracy and advanced dimming capabilities.
The CR6 generates white light with LEDs in a new way that enables an unprecedented combination of light output, high efficacy, beautiful color, and affordability. Why are you getting problem with it.
 
LED rated dimmers are not necessarily the answer.
Try a regular dimmer or a Low voltage.

For example.
Halo 4 inch will buzz with a lutron LEd dimmer the 6 inch will not.

There are different requirrements. You need to see if the LED requires Phase control dimming and then Forward or revers Phase control.
 
hmmm, from a strictly LED Controls perspective, the best way to control LED is via PWM, thus the controller should map a pot voltage to PWM. this allows dimmer switch to be very "lightweight" w/ great control of LED (constant voltage, constant current, duty cycle). in my view, there should be zero noise when controlling LED brightness.
 
DanielHickman said:
The CR Series is an amazing combination of price and performance. Built upon technical innovations in optical, electronics, mechanical and thermal design, the CR Series provides amazing color accuracy and advanced dimming capabilities.
The CR6 generates white light with LEDs in a new way that enables an unprecedented combination of light output, high efficacy, beautiful color, and affordability. Why are you getting problem with it.
Click to expand...
Wow! I'll buy 12 right now based on your unbiased opinion.
 
Might also be a capacitor that's buzzing. I've had ceramic and film caps that have buzzed in LED power supplies until I potted them. The ceramic caps work just like piezo tweeters.

/mike
 
I guess I'll try a normal dimmer instead of led dimmer next time. Can someone explain to me the difference between an led dimmer and a standard dimmer and why something that is marketed as "specifically for Led" ends up not working as good as one that isn't?
 
tbakelis said:
I guess I'll try a normal dimmer instead of led dimmer next time. Can someone explain to me the difference between an led dimmer and a standard dimmer and why something that is marketed as "specifically for Led" ends up not working as good as one that isn't?
Click to expand...

Older thread, but this was the cliffhanger last post. Any fresh answers?
 
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