 Light & Color
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Of all the technological advances over the past century, nothing has completely altered our lives as much as electric lighting.
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Understanding LightOf all the technological advances over the past
century, nothing has completely altered our lives
as much as electric lighting.find out more 
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The Science of LightVisible light is just a small segment of the electromagnetic spectrum— a broad range of radiant energy which also includes X-rays and infrared energy.find out more
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Relationship Between Color and Light We tend to think of objects as having fixed colors. In reality, an object’s appearance results from the way it reflects the particular light that is falling on it.find out more
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Color Characteristics of Light There are two systems of measurement commonly used to describe the color properties of a light source: “color temperature,” and “color rendering index” (CRI).find out more
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The Technology of LightAlmost all of today’s common electric light sources may be categorized broadly as incandescent, fluorescent or high intensity discharge (HID).find out more
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Incandescent & Halogen Technology Incandescent lamps were the original electric light sources. Today, halogen lamps are a refinement of incandescent technology that offer up to 20 percent greater energy efficiency.find out more
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Fluorescent TechnologyA fluorescent lamp is a “gaseous discharge” light
source. Light is produced by passing an electric arc between tungsten cathodes in a tube filled with a low pressure mercury vapor and other gases.find out more
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HID TechnologyThe technology in high intensity discharge lighting is in some ways similar to fluorescent technology.find out more
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Lighting InnovationsElectrodeless lighting, infrared lamps; and the HID Arc Tube Design. Taking advantage of lighting innovations.find out more
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LED TechnologySince their introduction in the early 1960s, LEDs have evolved from simple indicator lights and alphanumeric displays to an exciting new source for general lighting.find out more
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Ballasts TechnologyFluorescent and HID lamps require a ballast to apply starting voltage to the lamp and establish current flow – an "arc" – between the lamp electrodes. find out more
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Spectral Power DistributionA spectral power distribution (SPD) curve shows the precise color output of a given light source by charting the level of energy present at each wavelength across the visible spectrum.find out more
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Lamp Color CharacteristicsFluorescent light is produced by two primary mechanisms: the mercury arc and the fluorescence of the phosphor. find out more
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Applying the TechnologyChoosing the right lamp for a specific application can seem complicated. Many different elements of lamp performance must be considered. find out more
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