The light of the switch is non-existent and the switch is unacceptable. If you want to install this series, replace this switch with Legrand Valena where there is actual lighting. These two companies produce almost identical appearance switches, so you won't even realize that it is a different company.

23/3/2022

I am correcting some inaccuracies that I had written. The light is actually very good and powerful. Both switches had to be connected in order for it to emit the maximum light for some reason. If, for example, you try to install it in a switch that is not aller et tour, like the bathroom switch, the light is so dim that it is not even visible. Now you might say, why would you buy an aller et tour switch and install it in a place where return is not needed.

The main problem I encountered is that both lights do not always turn on. Either both will turn on or none will turn on. Depending on which switch is turned on first and which one is turned on second, this problem occurs. In contrast to Valena, where no matter what combination I made, the light would always be on. I even brought an electrician to fix it, but the problem was not solved.

Therefore, the light is excellent, but a specific combination needs to be made for which switch will be the first to turn on and which one will be the second if you want to have both lights constantly on.