Noise from power adapter

Hello.
I have a lightstrip plus and my power adapter makes a really weird noise when the lightstrip is off. When I turn it ON the noise is gone. I called to a local store in Ukraine who sells your products and they said that this is normal behavior of power adapter. But the lightstrip is turned into socket right beside the bed where we are sleeping and we have to turn it off from socket each night because noise is really strong in silence. Should I take it to service or ask for another adapter? or all of them making this noise?
Thanks!

Hi, I am sorry for this weird noise. You can ask for another adapter, the normal adapter has no noise when the lightstrip is off.

I bought two Yeelight LED Strips with EU plugs and they both have this noise only when light strip is off. It seems like a common problem.

I have this issue aswell, how can we get a new adapter without buying a whole new strip? I bought from Gearbest

Hi friends, I have the same issue here, with EU Plug in 2 lightstrips. What can we do?