"Buzzing" at the tailcap is ok?

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Manx
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"Buzzing" at the tailcap is ok?

Hi guys, my last purchase was a nice Brinyte Ed30, this from Aliexpress .

The torch can work fine with 1AA/2AA or 1×14500. I was very happy, but when I turned on for the first time I noticed a sort of buzzing at the tailcap. It was only in “low” and “medium” power. Both with AA or Lion. So, have write to the customer service, and that was the reply:
“Dear customer
Thanks for your require! The “buzzing” is the voice of current, because the brightness at “low” and “medium” gear is controlled by frequency conversion, so there will be frequency vibration in the two gear of electric current.
If you have any further question, pls. feel free to contact us for help.”

Is plausible?
Thank you so much.

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Old Mate
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On some cheaper lights, driver noise can be quite common at the head , but its not usually heard at the tailcap. For example my jetbeam bc 40 pwm controlled driver also buzz’s on low, but can only heard in a very quiet room.

Old Mate

Beachlogger
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Can you take the tail cap off and bypass the switch by jumping a wire between the – battery and the back of the flashlight tube and see if it still makes the noise?

Old Mate
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What happens to yours- does it go quiet?

Old Mate

Beachlogger
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Old Mate wrote:
What happens to yours- does it go quiet?
Is that a question for me… I don’t have that light, just qurious if it’s the switch or the driver
Manx
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Quote:
On some cheaper lights, driver noise can be quite common at the head , but its not usually heard at the tailcap
Quote:
Can you take the tail cap off and bypass the switch by jumping a wire between the – battery and the back of the flashlight tube and see if it still makes the noise?

Thanx guys. Bypass the switch, the noise still here Sad
So it’s at the head, and not at the tailcap. In the future, do you think it can be a problem? The driver can go “crack”?

Or it is just a minor threat?

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Hikelite
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Frequency is a broad term and I still have flashlight that buzz at the tailcap. It is irrelevant because there are many factors to amplifying a certain frequency. I got a flashlight which if I place it on it's head and on a empty box you can hear it from 3 meters whine quite annoying, like you never know what is going to happen.

The driver will not go "crack" for sure because of the audible frequency to the human ear. If the driver goes "crack" goes from other reasons.

Here's an interesting video to look at

 

Manx
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Thanx Hikelite!
So, now I will put 5 stars to the seller, if the buzzing is not a problem.
Nice video Smile

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Lightsaber
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This is just a PWM sound.

http://budgetlightforum.com/node/11340

My HD2010 sounds like a Christmas carol.

Manx
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Quote:
This is just a PWM sound.
http://budgetlightforum.com/node/11340
My HD2010 sounds like a Christmas carol.
:bigsmile: Mine is not so hurting Wink
BTW, thank you very much, now I can feel comfortable Smile

www.youtube.com/channel/UCeDhMPm0L1yvr3LpygDPgMw my flashlights/knives/gear video reviews
www.absoluteblack.net my dark comics