The instructions (section: “preparing and connecting wires”) say I need three wires though! I’m assuming that ground wire doesn’t count.
I attached the white and black wires the the inner N/L pair on the dsc18103. What do I attach to the right-most “L” connection? Is it possible for me to make this work, or am I out of luck?
Unless you have wires back there we cant see, that circuit has no neutral wire… You will need a smart switch (such as Inovelli) that supports a no-neutral installation.