I wanted a lamp with the HE842-wall switch (like another reviewer has already noticed a button is) switch for the lamp I have provided the Mini-built-in switch HE875. According to the description supplied should work. But it was not hinzukriegen that both talk to each other, while I have kept strictly to the instructions (connectors properly connected learning mode in HE875 activated etc.). I have been doing even the HE842 held right next to the HE875 (spark gap no 20 cm), there was no metal shield between the button cell in the HE842 is loaded. Nix.
Unfortunately, the attached manual for Home Easy system, we say, suboptimal. So surely, if I did not but also the remote control of HE800er series need to start the wall switch goes, I can not be. Anyway, I've had enough of the scrap, if only because in this respect the unclear instructions. A star and bye.