Question about Sigma Sport Aura 80/Blaze

There is something about this in the latest Roadbike, issue 10/23, please read it, thank you.

As far as I know, the link only works with the Sigma Sport Aura 100 with Blaze.

I don't know which video you have seen and how the two lights are coupled there. The two lights have no connection to each other and must be switched on and off individually.