What equipment is required to wire in to use that WEMO app on your phone to control the light?
It sounds complicated, but really isn't. The keys to making an Internet connected switch work, are to have a good WiFi signal at the switch location and having a neutral wire available in the switch electrical box.
Basically, you just replace a regular switch with a WEMO or similar Internet connected switch. I used a WEMO Dimmer switch I got from Amazon
. Pictured below. You can lightly stroke your finger along the row of dots on the switch face to control the dimmer level and tap the switch for on/off. From the WEMO smartphone app, you can also do those things as well as set schedules. Mine runs dusk to dawn (auto adjusted to correct time each day) at 1% dimmer power. I can make it brighter from my phone when I expect visitors.
The switch needs the black line and load wires, a ground wire and the white neutral wire to make its own little circuit to power the WiFi. If you don't have all those wires in your switch box, it just won't work out.
I ran two circuits out to the pole so one could control the light inside the porcelain shade and the other to separately power the motion spot lights on top. 12/3 w/ground
Use a WiFi device at the proposed switch location to see if you have a strong enough signal to be dependable at that spot. I didn't have a strong signal there 130' from the house, so I bought a new "mesh" router system that included 3 access points. That system gives us good WiFi all over the house, 2 garages, patio and the yard.
The switch setup is done through the app and usually goes well. WEMO's support site is pretty good. I couldn't find the dusk/dawn thing until I read the support page for schedules. If you get stuck, send me a private message or email and I'll try to help.
I did not trench in pipes to feed the water and air connections since I already have them at the garage. I do like the look they give the pole.