The Ring Transformer lets you smarten up existing landscape lights at home. Link your low-voltage lights to the Ring Transformer and Ring Bridge (sold separately) to enable smart controls so you can receive motion-activated notifications and turn on lights with the Ring App. With the Ring Transformer and Bridge, you can also connect your landscape lights to Alexa-enabled devices to turn on lights and adjust settings at the sound of your voice. The battery-powered Motion Sensor extends the range of your Ring of Security. It connects to your Ring lights, doorbells and cameras via the Ring Bridge to activate connected devices whenever motion is detected. The Ring Bridge also unlocks smart controls in the Ring App and lets you receive motion-activated notifications and adjust settings right from your phone or tablet. To set up your Motion Sensors, simply place them outside near entryways and connect them to your Ring devices and the Ring App via the Ring Bridge. When your Motion Sensors detect motion, it can activate connected lights, doorbells, cameras and more.