@yuval1235
Daisy chain is not very recommended, if wirelessly connect the 2nd range extender to 1st range extender could lead to bad the performance , thus we normally suggested connecting range extenders to router directly. Topology 1: RE1 )))(( Router )))(( RE2
Or you could use 2nd extender as a AP wired to first extender: Topology2: Router )) ((RE1 <Ethernet cable>RE2
Powerline KIT need to work in the same powerline circuit, or under the same power meter, but they normally could under different circuit breakers.
We have a QAs guide that may help you learn more about powerline devices:
Most frequently asked questions about TP-Link powerline devices