For the ground on the wemo just cap. So far i cant seem to wire this to work.
Apnt 23 Understanding 2 Wire And 3 Wire Lighting Systems
Light switch only has one black wire. The switch mounting box is made for a double light switch but only has 1 switch mounted in it. This switch and another switch can either be activated to turn on the light they are connected to. My old light switch in my bathroom only has two black wires connected to it. So i have a switch that has one black load i tested it and it has 120v one white neutral and one red. With only 1 black and 1 white they are both black as far as hooking up wemo. I should also mention that it is 5 led lights.
You have to have a common and i did was run a single wire from a box that uses a common wire. Run 2nd wemo black wire to black wire from old switch. The black wire from the light to the light switch did not make my meter beep so i am not sure where it goes. While the light only has a black and white electrical wire some manufacturers include an addition wire. So usually a standard single pole dumb switch has two blacks. The hot wire in a 120 volt residential ac circuit usually is coated with black insulation while the return or neutral wire is white.
If you dont have a ground wire leave the green screw unconnected. This is a typical wiring setup for a 3 way light switch with black white red and ground wires. One is the power coming into the box the other black is power going to the light. My apologies if this has been tackled before but im trying to replace an old light switch in my bathroom and the old one only had two black wires connected to it. Smart switches use a neutral and a ground wire in addition to the line and load black wires. I have 4 installed like this.
Connect the black wire to the other brass screw. Wemo black wire to the white wire from old switch. There is also some other things in that light box i am not understanding. If you have a ground wire connect the ground wire to the green screw. Open the package of wire nuts and installation screws that came with the new light fixture. I would check that the load wire probably black is securely connected to the screw labeled load.
Run white wemo to this common wire you add. Wiring a three way switch. A single pole single throw switch such as a light switch.