Low buzz sound in RGB/Flow modes


#1

Hello, I just bought a 2nd generation Bedside lamp and at first I was very happy with it. During last night, after upgrading the device’s firmware to the last avaiable version via Yeelight android app, I noticed that my unit produces a low buzz sound when the Color Mode or the Flow Mode are selected. The sound is very low in volume but clearly audible at 1-2 meters from the lamp. It is somewhat louder if the light is dimmed and/or set as purple hue. When in Flow Mode the buzz is persistent all over the avaiable colors.
It’s my unit faulty?


#2

This is my current firmware: 1.5.5_0163


#3

@dingyichen may you help me?


#4

Can we use it with mobile-phone-tracker.org mobile recorder on Android?


#5

I have the same problem too.
Have you solution ? Is it hardware or software problem ?

My bed lamp V2 (wifi connect) version is 1.5.5-164
I m using gocomma adapter for european electricity

I am very sensible to this noise. It’s disturbing me :confused:


#6

Same problem here. I suppose it’s not due to a faulty hardaware.


#7

Ok we are not alone

@demasque92 have you resolved this problem ?

I am disappointed if it’s hardware problem…


#8

@dingyichen do you or an other member of staff give us an answer please ?


#9

@demasque92 @Xoulos

Do you mean you can hear low buzz sound after update to latest firmware?


#10

I hear a continuous noise “yiiiiii” on my 2 bedside lamps.

Examples:

First lamp : i choose purple or green color or sunset mode with yeelight application (last version : 1.5.5_0164)

Seconde lamp: i choose flux colors or red or green with yeelight application (last version : 1.5.5_0164)

I tested my second lamp without update (1.4.8_150) and neither yeelight application and the noise do not appear (except sometimes during change color (1s) but not in continuous)

Android application 3.1.11
US server ( I live in France)
Id : 1740902220


#11

@demasque92
can you confirm whether is the buzz from adapter?


#12

Precision for me, the buzz noise comes from my 2 lamps, not their adapter


#13

I know what you mean with the buzz from the lamp.
Sometimes it can be that the lamp is resonating in its armature.

In a closed bulb ; for example a simple IKEA Fado Glass bulb you’ll not hear the lamp making buzzing sounds.
In a standing lamp like an IKEA HEKTAR I noticed that under some conditions you can hear your lamp…

Check if the Socket of the lamp is not loose… this might amplify the buzzing noise…


#14

The noise is produced from the lamp, not the adapter. @chyhaiyuan
No, I haven’t resolved this issue. @Xoulos
Even after upgrading to the latest firmware the buzz is still there.
I don’t know what to do, in certain conditions (i.e. room at night) the buzz is low but very much udible.


#15

I can hear the buzz since I bought the lamp and upgraded it to 1.5.5_0163, now I have got the latest firmware but the problem is still present. I asked to other owners of the Bedside Lamp 2 and from what they tell me some of them have the same issue, some other don’t have it.


#16

do you have an explanation ? Maybe


#17

maybe there is something wrong with the hardware of the lamp, so firmware upgrading is useless.
i suggest to exchange it.


#18

I am going to try exchange my 2 products with gearbest. I hope i will have not the same problem