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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]
An emergency light is a battery-backed lighting device that switches on automatically when a building experiences a power outage. In the United States, emergency lights are standard in new commercial and high occupancy residential buildings, such as college dormitories , apartments , and hotels .
When a building is renovated, vault lights may be removed or concreted over. For instance, the floor of New York's mostly-demolished old Pennsylvania Station was made of vault lights, to let light through the concourse floor onto the platforms. [8] The undersides of the lights can still be seen, but the tops have been concreted over (see images ...
Here are some stunning videos, images from social media posts on the severe weather and flooding in South Florida: Downtown Fort Lauderdale as of 3:45 PM no signs of this rain letting up.
This is a Scalable Vector Graphics (SVG) image of a registered trademark or copyrighted logo. If non-free content restrictions apply, this image should not be rendered any larger than is required for the purposes of identification and/or critical commentary. See Wikipedia:Logos.
Daylighting is the practice of placing windows, skylights, other openings, and reflective surfaces so that direct or indirect sunlight can provide effective internal lighting. Particular attention is given to daylighting while designing a building when the aim is to maximize visual comfort or to reduce energy use.
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