Ads
related to: rab motion detector flood lights
Search results
Results From The WOW.Com Content Network
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.
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.
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]
The High-frequency Active Auroral Research Program (HAARP) is a University of Alaska Fairbanks program which researches the ionosphere – the highest, ionized part of Earth's atmosphere.
This is a list of recognized content, updated weekly by JL-Bot (talk · contribs) (typically on Saturdays).There is no need to edit the list yourself. If an article is missing from the list, make sure it is tagged (e.g. {{WikiProject Television}}) or categorized correctly and wait for the next update.
This 156-troy-ounce (4.9 kg) gold nugget, known as the Mojave Nugget, was found by an individual prospector in the Southern California desert using a metal detector. Recreational gold mining and prospecting has become a popular outdoor activity several countries, including New Zealand (particularly in Otago ), Australia , South Africa , Wales ...
Ad
related to: rab motion detector flood lights