Light refers to a type of energy that is radiated by moving charged particles that is visible to the human eye. The most prominent light source is the sun. Lights are known to act like particles at times, and like waves at other times. All matter is composed of atoms, which comprise of electrons. The action of electrons is known to emit light in most sources.
In a number of cases, energy from the sun, also known as solar energy, is used to create light. Solar energy does not prove sufficient at night, creating the need for electrical lighting. Today most of the world use electrical lights during the night and even for added lighting during the day. Electrical lights are powered by electric grids and may even have generator backup.
There are a variety of lights available in the market, including incandescent light bulbs and arc lamps. A wide range of gas discharge lamps are also available. These include fluorescent lights, neon lamps and modern photographic flashes. Laser lights, light-emitting diodes and sulfur lights are also available. Sulfur lights are used mostly for outdoor public lighting purposes.
Battery-powered lights in the form of flashlights and torches are also forms of light. These are portable and popular with travelers. Lamp is the common term used to refer to a light source.
The term watt is a unit of measurement of power. The amount of electrical power that it uses, determines the wattage of the lamp. The wattage also determines the brightness of a light. Since most lights are powered by electricity, people need to be careful while handling these devices. Most lamps and light fittings are not water resistant and exposure could lead to an electrical sock. If sparks are noticed on a light source, the electrical supply should be shut off in order to avoid short circuits.
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Outdoor Lights
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When discussing outdoor lights it is important to realize that wattage and size requirements tend to vary, this depends upon the purpose of outdoor lights and where they are to be placed. The most common outdoor lights are streetlights designed and powered to last longer...
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Disco Lights
10 August 2010 8:30 PM |
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Light is a form of energy that is radiated by charged particles in constant motion, which is visible to the naked eye. Light acts as both a particle and as a wave. The action of electrons is a source of most light emissions. Electrical lights...
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Night Lights
10 August 2010 8:30 PM |
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Night-lights are those that provide visibility after dark. Apart from this basic explanation, wattage, size and power of light differs, based upon the purpose they are required to serve. These lights can be used at the backyard, outdoors and even indoors. Night-lights are those that...
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Halogen Lighting Fixtures
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Party Lights
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Light is an energy form that is created by random movement of charged particles and is detectable by the human eye. Lights may act as particles at times and could take a waveform at other times. Energy created by electrons is the foundation of most...
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Solar Lighting
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Strobe Lights
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A common term for stroboscopic lamp and/or stroboscope, strobe lights refer to electronic flash lights that are used in studios. Apart from this, a strobe light is a blinking and short length bright light. Manufacturers offer a range of portable strobe lights other than fixed...
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Home Solar Panels
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Home solar panels are devices consisting of photovoltaic (PV) cells or modules that convert sunlight directly into electricity and these can power home and consumer products. PV modules are clusters of PV cells, electrically connected and made into one frame. Initially, PV panels were used...
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Stage Lights
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A live performance is considered the ultimate head rush for many. An act before a crowd leaves no room for error and this prompts an immaculate presentation. Stage lights are installed in the best interests of the performers rather than an audience. These lights are...
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Christmas Lights
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Since time immemorial, Christmas has been celebrated with fanfare. Along with a divinity attached to it, Christmas is an occasion to rejoice and have a good time. Most houses are decorated during Christmas. Along with the Christmas tree, mistletoes, cookies, gifts, etc, outdoors Christmas lights...