Will a house flag moving in the wind trigger this camera and lights? The flag would be about 20 feet in front of the camera.

Hello Bobby, Great question! The Floodlight Camera Wired Pro camera's field of view is 140 degrees horizontally and 80 degrees vertically, while the lights on your device have a much wider field of view, 270 degrees. Here is a helpful article that details more product specifications: https://support.ring.com/hc/en-us/articles/360059101391-Ring-Floodlight-Cam-Wired-Pro-Information. This Ring device uses two different types of motion detection systems. While both are very effective at what they do, they both work on different principles and are optimized for different purposes. At night, the lights use an array of three PIR motion sensors, each detecting across a bit more than a third of the total coverage area. It identifies visitors by a moving heat signature and sending a signal to your smart device when it detects one and triggers the lights. Since PIRs look for heat, if a warm object is too small (like a Chihuahua), it won’t be detected. However, if a warm non-human object is large enough (like a Great Dane), you might get a false Motion Alert. Fortunately, you can control the sensor's range and sensitivity using the controls in the Ring App. Here is a helpful article that elaborates on the motion detection software on your device: https://support.ring.com/hc/en-us/articles/115005914666-About-the-Advanced-Motion-Detection-System-Used-in-Ring-Devices. We invite you to reach out at https://community.ring.com/ if any additional information is needed regarding your camera/light triggering question. Thank you, Alexis with Ring