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2. Passive infrared sensor - Wikipedia

   en.wikipedia.org/wiki/Passive_infrared_sensor

   A PIR motion detector used to control an outdoor, automatic light. A camera trap with PIR motion detector. An indoor light switch equipped with PIR-based occupancy sensor [1] A PIR-based motion detector is used to sense movement of people, animals, or other objects. They are commonly used in burglar alarms and automatically activated lighting ...

3. 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.

4. Home Depot - Wikipedia

   en.wikipedia.org/wiki/Home_Depot

   This is an accepted version of this page This is the latest accepted revision, reviewed on 16 January 2025. American multinational home improvement supplies retailing company The Home Depot, Inc. An aerial view of a Home Depot in Onalaska, Wisconsin Company type Public Traded as NYSE: HD DJIA component S&P 100 component S&P 500 component Industry Retail (home improvement) Founded February 6 ...

5. Twilight switch - Wikipedia

   en.wikipedia.org/wiki/Twilight_switch

   Also, keep in mind that ignition is based solely on the amount of natural light present and not on the height of the sun, so "unwanted ignition" may occur, for example in the presence of compact clouds associated with a significant drop in ambient light on the sensor (e.g., when there is a storm). To avoid this, twilight switches can be ...

6. Leap Motion - Wikipedia

   en.wikipedia.org/wiki/Leap_Motion

   Leap Motion, Inc. (formerly OcuSpec Inc.) [1] [2] was an American company, active from 2010 to 2019, that manufactured and marketed a computer hardware sensor device. The device supports hand and finger motions as input , analogous to a mouse , but requires no hand contact or touching.

7. Spotlight (theatre lighting) - Wikipedia

   en.wikipedia.org/wiki/Spotlight_(theatre_lighting)

   In circus and sports, spotlights may be arranged around the facility covering both sides and the ends. In a concert setting, they may be in a front of house (FOH) position, while other positions may have the spotlight upstage used as back or top light. Some concerts use truss spots on a truss downstage, but closer than catwalk spots in an ...