Yeelight Ceiling light defective

Hi, i’m new here.
I’m a proud owner of multiple yeelight products.
Lately a problem came up with one of my yeelights.
Last year on 12 Nov 2018, i’ve bought two “Yeelight YLXD01YL 320 28W Smart LED AC220V” from Gearbest.
Unitl yesterday everything worked well, but one of them started switching off for about half a second and turns it self on again.
This is happening every few minutes.
I’ve made sure that there isn’t a connection problem by switching the two lights.

I need your help.

Thank you very much and have a nice day.

Regards,
Rob

You can try to reset the device. And observe whether the device still has this phenomenon. if not, you can try to connect again.