You can connect WiFi lighting to your WiFi network. There are WiFi lights that are in direct connection to the router (and also to your smartphone, tablet, and PC), and there are also lights that require a bridge to make a connection. Which option the smart light uses differs per brand. You can see exactly what you need in the description of the product. The advantage of lights with WiFi is that you can both control them individually or collectively (by means of a scene) with the app.