There is an LED night light on the iDevices Socket, which can be controlled independently of the light bulb socket. The color of the night light can be changed through the iDevices Socket accessory page in the iDevices Connected App.
In the video walk-through below, we're using the night light on Socket as an example:
On iOS devices, you can also ask Siri to turn the night light on or off. For example, "Turn off my Socket night light.”