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There are three types of under-cabinet lighting available for residential use in the USA: incandescent, fluorescent, or LED. The type of lamp dictates the lamp’s style and performance, such as amount of lighting it emits, the light’s color, the life of the lamp, and energy use. [1]
The CIE 1931 colour space chromaticity diagram with wavelengths in nanometers.The colors depicted depend on the color space of the device on which the image is viewed.. The International Commission on Illumination (usually abbreviated CIE for its French name Commission internationale de l'éclairage) is the international authority on light, illumination, colour, and colour spaces.
Compared to modern electrical wiring standards, these are the main technical shortcomings of knob-and-tube wiring methods: never included a safety grounding conductor did not confine switching to the hot conductor (the so-called Carter system prohibited as of 1923 places electrical loads across the common terminals of a three-way switch pair)
1972 M. George Craford invents the first yellow light-emitting diode. 1972 Herbert Paul Maruska and Jacques Pankove create the first violet light-emitting diode. 1981 Philips sells their first Compact Fluorescent Energy Saving Lamps, with integrated conventional ballast. 1981 Thorn Lighting Group exhibits the ceramic metal-halide lamp.
The history of electric light is well documented, [11] and with the developments in lighting technology the profession of lighting developed alongside it. The development of high-efficiency, low-cost fluorescent lamps led to a reliance on electric light and a uniform blanket approach to lighting, but the energy crisis of the 1970s required more design consideration and reinvigorated the use of ...
Kitchen cabinets, or any cabinet generally at which a person may stand, usually have a fully enclosed base in which the front edge has been set back 75 mm or so to provide room for toes, known as the kick space. A scrolled base is similar to the fully enclosed base but it has areas of the base material removed, often with a decorative pattern ...
The criteria were based on the lighting industry standards and test procedures. [31] Light fixtures which have earned Energy Star combine quality design with the high energy efficiency. [32] To qualify for an Energy Star rating light fixtures must: [33] Uses 1/4 the energy of traditional lighting; Reduced energy bills and bulb replacement.
Researchers use daylight as the benchmark to which to compare color rendering of electric lights. In 1948, daylight was described as the ideal source of illumination for good color rendering because "it (daylight) displays (1) a great variety of colors, (2) makes it easy to distinguish slight shades of color, and (3) the colors of objects around us obviously look natural".