Buzzing

ercseyg · 2017 年5 月 17 日 07:19

Hi!
If the lamp is turned off by the remote control or the lamp is in moonlight mode, the lamp has buzzing noise, which is very annoying.

coasterli · 2017 年5 月 17 日 07:21

Lamp? Do you mean ceiling light?

ercseyg · 2017 年5 月 17 日 07:33

Yes, lamp = ceiling light.

coasterli · 2017 年5 月 17 日 07:44

What voltage is the power supply? 110v or 220v?

ercseyg · 2017 年5 月 17 日 07:57

220V / 50 Hz
room temperature: 24°C

coasterli · 2017 年5 月 17 日 08:18

We have never get similar feedback, I think it’s individual issue. Please return and get a new one from your retailers.

moonka · 2018 年4 月 8 日 01:31

I had the same problem with 450 Ceiling Light, but I solved it.
The main cause of the noise was the brown capacitor marked with a red circle.
The part was in contact with the blue part marked with a yellow circle, which amplified the noise.
Tilt the brown capacitor in the opposite direction so that the two parts are not in contact.
Symptoms have been alleviated to the point that it does not hinder the use now.

marco.sg · 2018 年4 月 8 日 02:07

Hhmm… Usually capacitors does not resonance. Usually it the high frequency transformer label number 3 in yellow that will produce buzzing sound. Or the inductor at the top right hand corner with some red coil. Does the capacitor vibrate very loudly that you can identify it immediately?

AntonPhilips · 2018 年4 月 8 日 04:42

Also make sure you don’t have the lamp connected on a dimmer, as that will also give a buzzing sound.

And will destroy the LED in the end. But you probably already know that

moonka · 2018 年4 月 8 日 05:30

I used a hearing aids app on my smartphone and checked each part by getting a microphone in close proximity. In my case it was certainly caused by the brown capacitor (CBB21 334K 400V). Especially when the main power is connected and the load is not applied, it caused a loud noise.

marco.sg · 2018 年4 月 8 日 06:18

I see. Usually it’s the coil in the circuit such as the high frequency transformers or the inductor that is vibrating at a lower frequency when there is no load. When there is load, the resonance frequency is higher and is out of human audible range. Anyway… It works for you… Thanks for sharing.

Dannyboy · 2018 年11 月 18 日 08:12

Hi, I get the high pitch sound from Ceiling light too. It is quite annying since it is in the sleeping room. Any possibility I can fix it if I recognize what component it is? I dont know cover with foam or so.

interligator · 2019 年3 月 26 日 19:48

I have the same issue with YILAI YIXD05YI 480, still couldn’t fix. See Can’t connect to YILAI YIXD05YI 480 ceiling light via app

ha33ori · 2020 年3 月 25 日 02:20

Does anyone can fix this buzzing noise yet??

hongkongkiwi · 2020 年4 月 23 日 00:54

Same problem here, both of my Yeelights buzz but only at lower frequency when using the bluetooth dimmer! I only noticed this recently.

It’s very frustrating as it’s in both my bedrooms.

I’m running at 220v.

Is this a manufactoring defect?

gaspie · 2020 年4 月 23 日 09:16

Try disconnect the yellow-green ground wire, leaving only blue (zero) and brown (phase). It worked for me.

ha33ori · 2020 年4 月 23 日 16:27

Which one, Can you show me some picture??

Stanly001 · 2023 年11 月 11 日 21:18

Hi, I know it’s long time ago, but… I have the same issue and maybe the same capacitor… have you changed it by new one and then it was solved? Thank you

pesimeao · 2024 年1 月 25 日 10:43

It seems to be a manufactoring defect for 220v!

This works! Thank you!
Also, it seems to me that the light flickering has disappeared/reduced.