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2. Motion detector - Wikipedia

   en.wikipedia.org/wiki/Motion_detector

   A motion detector attached to an outdoor, automatic light. A motion detector is an electrical device that utilizes a sensor to detect nearby motion (motion detection).Such a device is often integrated as a component of a system that automatically performs a task or alerts a user of motion in an area.

3. Lighting control system - Wikipedia

   en.wikipedia.org/wiki/Lighting_control_system

   A lighting control system incorporates communication between various system inputs and outputs related to lighting control with the use of one or more central computing devices. Lighting control systems are widely used on both indoor and outdoor lighting of commercial, industrial, and residential spaces. Lighting control systems are sometimes ...

4. Passive infrared sensor - Wikipedia

   en.wikipedia.org/wiki/Passive_infrared_sensor

   A passive infrared sensor (PIR sensor) is an electronic sensor that measures infrared (IR) light radiating from objects in its field of view. They are most often used in PIR-based motion detectors. PIR sensors are commonly used in security alarms and automatic lighting applications. PIR sensors detect general movement, but do not give ...

5. If You See a Red Porch Light, This Is What It Means - AOL

   www.aol.com/lifestyle/see-red-porch-light-means...

   What do people think red porch lights mean?. Back in 2016, a satirical website claimed that red lights on porches meant the home was gun-free. That’s a hoax, urban-legends site Snopes points out.

6. Light-emitting diode - Wikipedia

   en.wikipedia.org/wiki/Light-emitting_diode

   The flat bottom surfaces of the anvil and post embedded inside the epoxy act as anchors, to prevent the conductors from being forcefully pulled out via mechanical strain or vibration. A light-emitting diode (LED) is a semiconductor device that emits light when current flows through it. Electrons in the semiconductor recombine with electron ...

7. Here's what AOL shoppers are buying from all the Prime Day ...

   www.aol.com/lifestyle/what-aol-shoppers-are...

   This Ring Video Doorbell comes with 1080p resolution for a crystal-clear view of your front porch. This model has improved motion detection over previous versions, and you can review video footage ...