Ring, white, smart lighting bridge, pair with ring smart lights to get notifications when motion is detected, customize settings & connect to other ring devices, all from the ring app, installs indoors & receives power through the included micro-usb power supply & cable, connects ring smart lighting with ring doorbells & cameras to create a fully connected home security system, works with alexa to turn on lights & adjust settings with your voice, 1 ring bridge supported per household, supports approximately 50 ring smart lighting devices, including motion sensors.