Uhmmm. Looks okay. But I find items that look like that can be a right pain to keep connected to your router, network and phone.
So I strongly recomend that you leave the 'current' working switch untouched and wired in place as it is now.
As it works just leave it where it is.
It will always work, even if the new wifi one stops working or your network is down / modified, or they take away the app, or your phone can no longer install the app.
Then wire the new switch as an additional switch using the connectors in the wiska box.
As the new switch is WIFI controlled, you could have the new switch hidden very close to the wiska box, or (if big/small enough) inside the wiska box where it will be dry.
Note that I have a Alexa/Google switch controling my outside lights so I can shout inside the house to illuminate garden.
But I have also kept the old manual switch as it always works.
SFK
So I strongly recomend that you leave the 'current' working switch untouched and wired in place as it is now.
As it works just leave it where it is.
It will always work, even if the new wifi one stops working or your network is down / modified, or they take away the app, or your phone can no longer install the app.
Then wire the new switch as an additional switch using the connectors in the wiska box.
As the new switch is WIFI controlled, you could have the new switch hidden very close to the wiska box, or (if big/small enough) inside the wiska box where it will be dry.
Note that I have a Alexa/Google switch controling my outside lights so I can shout inside the house to illuminate garden.
But I have also kept the old manual switch as it always works.
SFK
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