HG06492A Lidl Gu10 Bulb pairing failed

I bought three Livarno GU10 bulbs and would like to integrate them into Home Assistant.

But when I put them in the lamp socket and put them into pairing mode and want to establish the zigbee2mqtt connection, they are only recognized briefly and when mqtt interviews them, the lamps suddenly go on and off again and again, in a slow interval. I think because of this they cannot connect to Home Assistant.

It worked quickly and well with my tadfri from Ikea. but they are not bright enough for me. Does anyone else have this problem?

Thanks in advance for your help.

I cannot upload pictures, you may see a picture of the mqtt error in my cloud.