If I’m making something like this work, I would consider changing the light end of the wire connections to something waterproof.
maybe those automotive weather pack connectors, the ones with the rubber accordion type seal. Really depends on the location, access, and size of the hole I want to drill in the house.
A quality glue filled heat shrink and a solder connection is hard to beat, if you can live with a more permanent connection.
I’m sure someone knows which wires in the ethernet cable are power. A lot depends on length of run, voltage loss, 23 awg is small wire.