Ring Step Light - Motion Detection

Hi - have three questions regarding the the Ring Steplight for folks that have one:1. I know the lighting capabilites can be turned off during daylight, but will motion capabilites still work in detecting motion and say notifying me through Alexa?2. If I wanted, could I use the Steplight for just it's motion capabilities, turning off the lighting capabilities?3. DoI need a bridge or can I use the Ring Security Base Station as the bridge?Thanks!