So I kind of like KASA but I have like 100 switches in my house so if I replaced them all I would have to have 100 IP addresses.

So I was thinking of putting KASA on a different subnet just for the switches.

BUT can the Node server support that?  It seems to scan your LAN for switches so thinking this wont work.

It does not scan the network, it sends out discover packets which the devices respond to.

I needed this NS because I really liked their power strips and the ability control each plug on them, and then added light strips and some color bulbs.  But, I would not personally have my home relying on these everywhere due to the caveat mentioned in the README:

This Node server relies on a mostly undocumented and unofficially supported local API which of course TP-Link could break at any time, and has in the past, but luckily others figure it out.

I hope the power strip uses one ip addres and not multiple ip for each outlet.  

37 minutes ago, macjeff said:

I hope the power strip uses one ip addres and not multiple ip for each outlet.  

Yes, it's one device.