There are two optical phenomena that need to be recognized in street light installations. The loss of night vision because of the accommodation reflex of drivers' eyes is the greatest danger. As drivers emerge from an unlighted area into a ...
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Pumps are used throughout society for a variety of purposes. Early applications includes the use of the windmill or watermill to pump water. Today, the pump is used for irrigation, water supply, gasoline supply, air conditioning systems, ...
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Although CFLs are an excellent source of energy-efficient lighting, they are not always the best choice for all lighting applications. Here are a few limitations to consider: On/Off cycling: CFLs are sensitive to frequent on/off cycling. ...
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CFLs are available in a variety of styles or shapes. Some have two, four, or six tubes. Older models, and specialty models, have separate tubes and ballasts. Some CFLs have the tubes and ballast permanently connected. This allows you to ...
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Nowadays, Many outdoor LED displays on the market are built using SMD technology— A trend that is now extending to the outdoor market. The SMD pixel consists of red, green, and blue diodes mounted in a single package, which is then ...
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Light switches that light up when the main light is off can cause problems with CFLs. Illuminated light switches work by passing some of the current through the switch to light it up when the switch is off, and that tiny amount of current ...
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As people realize the advantages of using CFLs, the traditional incandescent lamps seem to be on their way out. Here are the benefits of using these lamps, for those of you who may still be having apprehensions of using such lamps. Reduced ...
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CFLs are available in a variety of styles or shapes. Some have two, four, or six tubes. Others have circular or spiral-shaped tubes. The size or total surface area of the tube(s) determines how much light it produces. Some CFLs have the ...
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CFLs work much like standard fluorescent lamps. They consist of two parts: A gas-filled tube, and a magnetic or electronic ballast. The gas in the tube glows with ultraviolet light when electricity from the ballast flows through it. This in ...
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The parent to the modern fluorescent lamp was invented in the late 1890s by Peter Cooper Hewitt. The Cooper Hewitt lamps were used for photographic studios and industries. Edmund Germer, Friedrich Meyer, and Hans Spanner patented a ...
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Delft University of Technology (TU Delft) is currently testing an intelligent street lighting system on its campus, which uses up to 80% less electricity than the current systems and is also cheaper to maintain. The system consists of ...
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The earliest lamps were used by Greek and Roman civilizations, where light primarily served the purpose of security, both to protect the wanderer from tripping over something on the path as well as keeping the potential robbers at bay. At ...
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A lot of people work late and can't enjoy their landscape when they come home at night. What good is landscaping if you can't see it? Low Voltage Landscape Lighting One solution to this predicament is a relatively new product known as ...
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LED display by the tens of thousands - hundreds of thousands of semiconductor light-emitting diode array of pixels uniform. The different LED materials can create different colors of LED pixels. Now the most used LEDs are red, blue, green, ...
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In recent years, partially due to the increase of electricity bills, low voltage outdoor lighting has become more and more popular in American families. Low voltage outdoor lighting is inexpensive, easy to install, environmental friendly, ...
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