I have 2 eufyCam 2C Pro’s one of which I connected to a Eufy solar panel. No changes to the camera needed as it works off the battery but the panel keeps it charged. Very easy to install, I also put a small amount of white silicon sealant around the connection on the camera to make sure moisture does not get in but the actual gaskets that come with the solar panel are excellent and all you need to install is in the box with the panel, just choose the correct gasket for the camera you have. I pointed the panel south facing, it even charges on poor sunny days. I am based in Northwest England.
Highly recommended.