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2. Ring (company) - Wikipedia

   en.wikipedia.org/wiki/Ring_(company)

   A second-generation model, Ring Doorbell 2, was released in 2017, with updated hardware and a 1080p camera with improved low-light performance, that does not rely solely on Wi-Fi, unlike the original model. [44] The Ring Doorbell Pro interoperates with Amazon Alexa to play prerecorded greetings to visitors and allow visitors to leave a message ...

3. Want better home security? A refurbished Ring Floodlight Cam ...

   www.aol.com/lifestyle/want-better-home-security...

   Light up the night with this Ring Floodlight Cam Pro, now just $100. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290-4726 more ways to reach us ...

4. Ring’s Car Camera Is An Impressive Security System, But ...

   www.aol.com/ring-car-camera-impressive-security...

   The Ring Car Cam combines a dash cam and security camera into one sleek auto accessory. View a live feed of your car’s interior and exterior remotely. Ring’s Car Camera Is An Impressive ...

5. Forward-looking infrared - Wikipedia

   en.wikipedia.org/wiki/Forward-looking_infrared

   Forward-looking infrared (FLIR) cameras, typically used on military and civilian aircraft, use a thermographic camera that senses infrared radiation. [ 1 ] The sensors installed in forward-looking infrared cameras, as well as those of other thermal imaging cameras, use detection of infrared radiation, typically emitted from a heat source ...

6. Floodlight - Wikipedia

   en.wikipedia.org/wiki/Floodlight

   The most common type of floodlight was the metal-halide lamp, which emits a bright white light (typically 75–100 lumens/Watt). Sodium-vapor lamps are also commonly used for sporting events, as they have a very high lumen to watt ratio (typically 80–140 lumens/Watt), making them a cost-effective choice when certain lux levels must be provided. [4]

7. Ring flash - Wikipedia

   en.wikipedia.org/wiki/Ring_flash

   A ring flash is a circular light that is often operated with a camera lens in the center to take photographs. Unlike point light sources , a ring flash can illuminate a subject with minimal shadows by closely and evenly surrounding the optical axis of the camera lens.