Smart Outdoor Lighting - Have your indoor or outdoor smart lights turn on automatically whenever motion is detected. What's Required? - A 'Philips Hue Bridge' (sold separately) is required for smart control. Simply connect your new Philips Hue Motion Sensor to the bridge and take advantage of smart home lighting via the 'Philips Hue' app. Weather Resistant (IP54) - The Philips Hue Motion Sensor is specifically designed for outdoor environments and has undergone rigorous tests to ensure performance. Position Anywhere - The outdoor sensor is battery operated, and communicates wirelessly to your bridge, so you can take it wherever you want to detect movement. All the necessary components are included to mount it on the wall or in a corner. Integrated Dusk to Dawn Sensor - With the motion sensor's integrated dusk to dawn sensor, have your lights only switch on when it's dark outside. Voltage: 230.0 volts; Power source type: battery powered