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109 relations: Alternating current, Ampere, Aveiro, Portugal, Band gap, Bayonet mount, Bi-pin lamp base, Black-body radiation, Chennai, Chromaticity, Circadian rhythm, Circadian rhythm sleep disorder, Color rendering index, Color temperature, Compact fluorescent lamp, Complementary colors, Compound annual growth rate, Consumer, Dark therapy, Daylight, Direct current, Edison screw, Electric current, Electric energy consumption, Electric light, Electrical ballast, Electrical efficiency, Energy conservation, Energy Independence and Security Act of 2007, Energy Saving Trust, Energy Star, Fan (machine), Fin (extended surface), Finland, Flashlight, Fluorescence, Fluorescent lamp, Fluorescent-lamp formats, Fossil fuel, Global warming, Glow discharge, Grow light, Hazardous waste, Heat sink, Incandescence, Incandescent light bulb, Junction temperature, Kelvin, L Prize, Lambertian reflectance, LED circuit, ..., LED display, LED filament, LED street light, Light, Light effects on circadian rhythm, Light fixture, Light therapy, Light-emitting diode, List of emerging technologies, List of light sources, Lumen (unit), Luminous efficacy, Luminous flux, Lux, Lymantria dispar dispar, Mains electricity, Mercury (element), Metal-halide lamp, Multifaceted reflector, NASA, National Institute of Standards and Technology, Natural Resources Defense Council, Nichia, Nobel Prize in Physics, Oconomowoc, Wisconsin, Operating temperature, Parabolic aluminized reflector light, Philips, Phosphor, Photometry (optics), Portugal, Power factor, Radiation angle, Rectifier, Rensselaer Polytechnic Institute, RGB color model, Semiconductor, Shuji Nakamura, SMD LED Module, Sodium-vapor lamp, Solar lamp, Solid-state electronics, Spectroscopy, Stokes shift, Switched-mode power supply, The Charlotte Observer, The Mercury News, The New York Times, The Washington Post, Thermal management of high-power LEDs, Trichromacy, Turku Cathedral, Ultraviolet, United Kingdom, United States Department of Energy, University of Cambridge, Watt, Wisconsin, World energy resources. Expand index (59 more) »
Alternating current
Alternating current (AC) is an electric current which periodically reverses direction, in contrast to direct current (DC) which flows only in one direction.
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Ampere
The ampere (symbol: A), often shortened to "amp",SI supports only the use of symbols and deprecates the use of abbreviations for units.
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Aveiro, Portugal
Aveiro is a city and a municipality in Portugal.
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Band gap
In solid-state physics, a band gap, also called an energy gap or bandgap, is an energy range in a solid where no electron states can exist.
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Bayonet mount
A bayonet mount (mainly as a method of mechanical attachment, as for fitting a lens to a camera) or bayonet connector (for electrical use) is a fastening mechanism consisting of a cylindrical male side with one or more radial pins, and a female receptor with matching L-shaped slot(s) and with spring(s) to keep the two parts locked together.
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Bi-pin lamp base
A bipin or bi-pin, (sometimes referred to as two-pin, bipin cap or bipin socket), is a type of lamp fitting.
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Black-body radiation
Black-body radiation is the thermal electromagnetic radiation within or surrounding a body in thermodynamic equilibrium with its environment, or emitted by a black body (an opaque and non-reflective body).
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Chennai
Chennai (formerly known as Madras or) is the capital of the Indian state of Tamil Nadu.
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Chromaticity
Chromaticity is an objective specification of the quality of a color regardless of its luminance.
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Circadian rhythm
A circadian rhythm is any biological process that displays an endogenous, entrainable oscillation of about 24 hours.
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Circadian rhythm sleep disorder
Circadian rhythm sleep disorders (CRSD) are a family of sleep disorders affecting (among other bodily processes) the timing of sleep.
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Color rendering index
A color rendering index (CRI) is a quantitative measure of the ability of a light source to reveal the colors of various objects faithfully in comparison with an ideal or natural light source.
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Color temperature
The color temperature of a light source is the temperature of an ideal black-body radiator that radiates light of a color comparable to that of the light source.
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Compact fluorescent lamp
A compact fluorescent lamp (CFL), also called compact fluorescent light, energy-saving light, and compact fluorescent tube, is a fluorescent lamp designed to replace an incandescent light bulb; some types fit into light fixtures designed for incandescent bulbs.
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Complementary colors
Complementary colors are pairs of colors which, when combined, cancel each other out.
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Compound annual growth rate
Compound annual growth rate (CAGR) is a business and investing specific term for the geometric progression ratio that provides a constant rate of return over the time period.
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Consumer
A consumer is a person or organization that use economic services or commodities.
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Dark therapy
Dark therapy is the practice of keeping people in complete darkness for periods of time in an attempt to treat psychological conditions.
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Daylight
Daylight, or the light of day, is the combination of all direct and indirect sunlight during the daytime.
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Direct current
Direct current (DC) is the unidirectional flow of electric charge.
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Edison screw
Edison screw (ES) is a standard socket for light bulbs in North America.
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Electric current
An electric current is a flow of electric charge.
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Electric energy consumption
Electric energy consumption is the form of energy consumption that uses electric energy.
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Electric light
An electric light is a device that produces visible light from electric current.
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Electrical ballast
An electrical ballast is a device placed in line with the load to limit the amount of current in an electrical circuit.
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Electrical efficiency
The efficiency of an entity (a device, component, or system) in electronics and electrical engineering is defined as useful power output divided by the total electrical power consumed (a fractional expression), typically denoted by the Greek small letter eta (η – ήτα).
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Energy conservation
Energy conservation is the effort made to reduce the consumption of energy by using less of an energy service.
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Energy Independence and Security Act of 2007
The Energy Independence and Security Act of 2007 (originally named the Clean Energy Act of 2007) is an Act of Congress concerning the energy policy of the United States.
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Energy Saving Trust
Energy Saving Trust (EST) is a British organization devoted to promoting energy efficiency, energy conservation, and the sustainable use of energy, thereby reducing carbon dioxide emissions and helping to prevent man-made climate change.
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Energy Star
Energy Star (trademarked ENERGY STAR) is a voluntary program launched by the U.S. Environmental Protection Agency (EPA) and now managed by the EPA and U.S. Department of Energy (DOE) that helps businesses and individuals save money and protect the environment through superior energy efficiency.
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Fan (machine)
A mechanical fan is a powered machine used to create flow within a fluid, typically a gas such as air.
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Fin (extended surface)
In the study of heat transfer, fins are surfaces that extend from an object to increase the rate of heat transfer to or from the environment by increasing convection.
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Finland
Finland (Suomi; Finland), officially the Republic of Finland is a country in Northern Europe bordering the Baltic Sea, Gulf of Bothnia, and Gulf of Finland, between Norway to the north, Sweden to the northwest, and Russia to the east.
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Flashlight
A flashlight (more often called a torch outside North America) is a portable hand-held electric light.
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Fluorescence
Fluorescence is the emission of light by a substance that has absorbed light or other electromagnetic radiation.
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Fluorescent lamp
A fluorescent lamp, or fluorescent tube, is a low-pressure mercury-vapor gas-discharge lamp that uses fluorescence to produce visible light.
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Fluorescent-lamp formats
Since their introduction as a commercial product in 1939, many different types of fluorescent lamp have been introduced.
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Fossil fuel
A fossil fuel is a fuel formed by natural processes, such as anaerobic decomposition of buried dead organisms, containing energy originating in ancient photosynthesis.
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Global warming
Global warming, also referred to as climate change, is the observed century-scale rise in the average temperature of the Earth's climate system and its related effects.
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Glow discharge
A glow discharge is a plasma formed by the passage of electric current through a gas.
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Grow light
A grow light or plant light is an artificial light source, generally an electric light, designed to stimulate plant growth by emitting a light appropriate for photosynthesis.
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Hazardous waste
Hazardous waste is waste that has substantial or potential threats to public health or the environment.
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Heat sink
A heat sink (also commonly spelled heatsink) is a passive heat exchanger that transfers the heat generated by an electronic or a mechanical device to a fluid medium, often air or a liquid coolant, where it is dissipated away from the device, thereby allowing regulation of the device's temperature at optimal levels.
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Incandescence
Incandescence is the emission of electromagnetic radiation (including visible light) from a hot body as a result of its temperature.
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Incandescent light bulb
An incandescent light bulb, incandescent lamp or incandescent light globe is an electric light with a wire filament heated to such a high temperature that it glows with visible light (incandescence).
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Junction temperature
Junction temperature, short for transistor junction temperature, is the highest operating temperature of the actual semiconductor in an electronic device.
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Kelvin
The Kelvin scale is an absolute thermodynamic temperature scale using as its null point absolute zero, the temperature at which all thermal motion ceases in the classical description of thermodynamics.
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L Prize
The L Prize (aka the Bright Tomorrow Lighting Prize) is a competition run by the United States Department of Energy aimed to "spur lighting manufacturers to develop high-quality, high-efficiency solid-state lighting products to replace the common incandescent light bulb".
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Lambertian reflectance
Lambertian reflectance is the property that defines an ideal "matte" or diffusely reflecting surface.
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LED circuit
In electronics, an LED circuit or LED driver is an electrical circuit used to power a light-emitting diode (LED).
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LED display
An LED display is a flat panel display, which uses an array of light-emitting diodes as pixels for a video display.
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LED filament
An LED filament light bulb is an LED lamp which is designed to resemble a traditional incandescent light bulb with visible filaments, for aesthetic and light distribution purposes.
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LED street light
An LED street light or road light is an integrated light-emitting diode (LED) light fixture that is used for street lighting.
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Light
Light is electromagnetic radiation within a certain portion of the electromagnetic spectrum.
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Light effects on circadian rhythm
Most animals and other organisms have "built in clocks" in their brains that regulate the timing of biological processes and daily behavior.
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Light fixture
A light fixture (US English), light fitting (UK English), or luminaire is an electrical device that contains an electric lamp that provides illumination.
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Light therapy
Light therapy—or phototherapy, classically referred to as heliotherapy—consists of exposure to daylight or to specific wavelengths of light using polychromatic polarised light, lasers, light-emitting diodes, fluorescent lamps, dichroic lamps or very bright, full-spectrum light.
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Light-emitting diode
A light-emitting diode (LED) is a two-lead semiconductor light source.
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List of emerging technologies
Emerging technologies are those technical innovations which represent progressive developments within a field for competitive advantage.
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List of light sources
This is a list of sources of light, including both natural and artificial processes that emit light.
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Lumen (unit)
The lumen (symbol: lm) is the SI derived unit of luminous flux, a measure of the total quantity of visible light emitted by a source.
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Luminous efficacy
Luminous efficacy is a measure of how well a light source produces visible light.
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Luminous flux
In photometry, luminous flux or luminous power is the measure of the perceived power of light.
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Lux
The lux (symbol: lx) is the SI derived unit of illuminance and luminous emittance, measuring luminous flux per unit area.
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Lymantria dispar dispar
Lymantria dispar dispar, commonly known as the gypsy moth, European gypsy moth, or North American gypsy moth, is a moth in the family Erebidae that is of Eurasian origin.
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Mains electricity
Mains electricity (as it is known in the UK; US terms include grid power, wall power, and domestic power) is the general-purpose alternating-current (AC) electric power supply.
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Mercury (element)
Mercury is a chemical element with symbol Hg and atomic number 80.
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Metal-halide lamp
A metal-halide lamp is an electrical lamp that produces light by an electric arc through a gaseous mixture of vaporized mercury and metal halides (compounds of metals with bromine or iodine).
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Multifaceted reflector
A multifaceted reflector (often abbreviated MR) light bulb is a reflector housing format for halogen as well as some LED and fluorescent lamps.
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NASA
The National Aeronautics and Space Administration (NASA) is an independent agency of the executive branch of the United States federal government responsible for the civilian space program, as well as aeronautics and aerospace research.
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National Institute of Standards and Technology
The National Institute of Standards and Technology (NIST) is one of the oldest physical science laboratories in the United States.
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Natural Resources Defense Council
The Natural Resources Defense Council (NRDC) is a United States-based, non-profit international environmental advocacy group, with its headquarters in New York City and offices in Washington, D.C.; San Francisco; Los Angeles; New Delhi, India; Chicago; Bozeman, Montana; and Beijing, China.
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Nichia
is a Japanese chemical engineering and manufacturing company headquartered in Anan, Japan with global subsidiaries.
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Nobel Prize in Physics
The Nobel Prize in Physics (Nobelpriset i fysik) is a yearly award given by the Royal Swedish Academy of Sciences for those who conferred the most outstanding contributions for mankind in the field of physics.
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Oconomowoc, Wisconsin
Oconomowoc is a city in Waukesha County, Wisconsin, United States.
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Operating temperature
An operating temperature is the temperature at which an electrical or mechanical device operates.
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Parabolic aluminized reflector light
A parabolic aluminized reflector lamp (also PARCAN light, PARcan, or simply PAR) is a type of electric lamp that is widely used in commercial, residential, and transportation illumination.
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Philips
Koninklijke Philips N.V. (Philips, stylized as PHILIPS) is a Dutch multinational technology company headquartered in Amsterdam currently focused in the area of healthcare.
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Phosphor
A phosphor, most generally, is a substance that exhibits the phenomenon of luminescence.
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Photometry (optics)
Photometry is the science of the measurement of light, in terms of its perceived brightness to the human eye.
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Portugal
Portugal, officially the Portuguese Republic (República Portuguesa),In recognized minority languages of Portugal: Portugal is the oldest state in the Iberian Peninsula and one of the oldest in Europe, its territory having been continuously settled, invaded and fought over since prehistoric times.
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Power factor
In electrical engineering, the power factor of an AC electrical power system is defined as the ratio of the real power flowing to the load to the apparent power in the circuit, and is a dimensionless number in the closed interval of −1 to 1.
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Radiation angle
In fiber optics, the radiation angle is half the vertex angle of the cone of light emitted at the exit face of an optical fiber.
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Rectifier
A rectifier is an electrical device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction.
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Rensselaer Polytechnic Institute
Rensselaer Polytechnic Institute, or RPI, is a private research university and space-grant institution located in Troy, New York, with two additional campuses in Hartford and Groton, Connecticut.
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RGB color model
The RGB color model is an additive color model in which red, green and blue light are added together in various ways to reproduce a broad array of colors.
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Semiconductor
A semiconductor material has an electrical conductivity value falling between that of a conductor – such as copper, gold etc.
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Shuji Nakamura
is a Japanese-born American electronic engineer and inventor specializing in the field of semiconductor technology, professor at the Materials Department of the College of Engineering, University of California, Santa Barbara (UCSB), and is regarded as the inventor of the blue LED, a major breakthrough in lighting technology.
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SMD LED Module
An SMD LED Module (surface-mount device light-emitting diode module) is a type of LED module that uses surface-mount technology (SMT) to mount LED chips on printed circuit boards (PCB).
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Sodium-vapor lamp
A sodium-vapor lamp is a gas-discharge lamp that uses sodium in an excited state to produce light at a characteristic wavelength near 589 nm.
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Solar lamp
A solar lamp also known as solar light or solar lantern, is a lighting system composed of an LED lamp, solar panels, battery, charge controller and there may also be an inverter.
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Solid-state electronics
Solid-state electronics means semiconductor electronics; electronic equipment using semiconductor devices such as semiconductor diodes, transistors, and integrated circuits (ICs).
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Spectroscopy
Spectroscopy is the study of the interaction between matter and electromagnetic radiation.
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Stokes shift
Stokes shift is the difference (in wavelength or frequency units) between positions of the band maxima of the absorption and emission spectra (fluorescence and Raman being two examples) of the same electronic transition.
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Switched-mode power supply
A switched-mode power supply (switching-mode power supply, switch-mode power supply, switched power supply, SMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently.
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The Charlotte Observer
The Charlotte Observer is a newspaper serving Charlotte and its metro area.
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The Mercury News
The Mercury News (formerly San Jose Mercury News, often locally known as The Merc) is a morning daily newspaper published in San Jose, California, United States.
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The New York Times
The New York Times (sometimes abbreviated as The NYT or The Times) is an American newspaper based in New York City with worldwide influence and readership.
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The Washington Post
The Washington Post is a major American daily newspaper founded on December 6, 1877.
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Thermal management of high-power LEDs
High power light-emitting diodes (LEDs) can use 350 milliwatts or more in a single LED.
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Trichromacy
Trichromacy or trichromatism is the possessing of three independent channels for conveying color information, derived from the three different types of cone cells in the eye.
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Turku Cathedral
Turku Cathedral (Turun tuomiokirkko, Åbo domkyrka) is the previous catholic cathedral of Finland, today the Mother Church of the Evangelical Lutheran Church of Finland.
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Ultraviolet
Ultraviolet (UV) is electromagnetic radiation with a wavelength from 10 nm to 400 nm, shorter than that of visible light but longer than X-rays.
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United Kingdom
The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain,Usage is mixed with some organisations, including the and preferring to use Britain as shorthand for Great Britain is a sovereign country in western Europe.
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United States Department of Energy
The United States Department of Energy (DOE) is a cabinet-level department of the United States Government concerned with the United States' policies regarding energy and safety in handling nuclear material.
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University of Cambridge
The University of Cambridge (informally Cambridge University)The corporate title of the university is The Chancellor, Masters, and Scholars of the University of Cambridge.
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Watt
The watt (symbol: W) is a unit of power.
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Wisconsin
Wisconsin is a U.S. state located in the north-central United States, in the Midwest and Great Lakes regions.
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World energy resources
World energy resources are the estimated maximum capacity for energy production given all available resources on Earth.
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References
[1] https://en.wikipedia.org/wiki/LED_lamp
