You use a component to connect to some networked light control system. The "Light" category has 71 components: https://www.home-assistant.io/components/#light h

You use a component to connect to some networked light control system. The "Light" category has 71 components: https://www.home-assistant.io/components/#light https://www.home-assistant.io/components/#light An example would be IKEA Trådfri (https://www.home-assistant.io/components/tradfri/); https://www.home-assistant.io/components/tradfri/); you connect the lights to its gateway device, then Home Assistant will use the API provided by that gateway to control the lights.