Yeelight Colors

Hi guys,

I recently bought 4 yeelight rgb bulb; but one of them didn’t display the right colors. The bulbs are all connected in group.
The other 3 was displaying the right colors, but 1 is especially dim at white colors.
I already upgraded the firmware to the newest one, tried unpairing it from the account but no luck.
Can someone help me?

Thanks

Looks like a hardware issue. You may ask for the retailer to replace one for you.