Hi i cant get my yeelight and alexa connected

Hello.I just bought alexa and 2 yeelight e27 color lamps
But alexa doesnt find the one and when i pair the second it doesnt respond with alexa.How can i fix this issue?

What’t the model of your lamps? You can view it in Device Info feature of Yeelight app.

Hi thanks for the reply.I resolved the issue.I chnaged the server from germany and europe to chinese mainland and alexa found them as soon as i added them to tbe yeelight app