With its two channels, the ON/OFF Lighting Relay Switch enables the
user to connect and remotely control one or two lights with a wireless
and battery-free controller (wall switch, remote, …).
It is easy to install, without building work, behind a wired wall switch,
on the ceiling or in the electrical panel.
View more: https://nodon.fr/en/nodon/enocean-relay-switch-2-channels/