I have buy 5 ceiling light, 3 out of 5 got problem which cannot light on or turn off sponanteously

I have buy two 450, two ceiling light and one 650. One 450, One ceiling light and one 650 just turn off spontaneously after 5 min. I cannot turn it on again with wall switch until resting it for few hours or one day. I have already updated all the firmware to its latest version. The QC of yeelight really bad. Any suggestion for my problem. I am very disappointed for the quantity.

my ID: 289583089. Any suggestion?

We fell sorry about the issue. We’ve received similar reports before. It turned to be caused by faulty controller units.

You can contact your retailer for replacements.