What is color rendition (CRI)?
Color rendition is the color appearance of an object when lighted. The higher the color rendering index (CRI), the less distortion of the object’s color. Scales ranges from 0 to 100. Higher number indicates less color shift. See also CRI in the glossary of terms. What is color appearance? Color appearance is color temperature, which is measured in Kelvins. It ranges from 9000K (which appears to be blue) down to 1500K (which appears orange-red). Color temperatures of 4000K or more are considered cool, 3100K or less are considered warm. What is a footcandle? A unit of measurement indicating how much illumination is reaching a surface. It is equal to one lumen striking an area of one square foot. What is a candela? A candela is a unit of measure indicating the luminous intensity (candlepower) of a light source in a specific direction; any given light source will have many different intensities, depending upon the direction considered. Why should I be concerned about the mercury content of
Color rendition is the color appearance of an object when lighted. The higher the color rendering index (CRI), the less distortion of the object’s color. Scales ranges from 0 to 100. Higher number indicates less color shift. See also CRI in the glossary of terms. What is color appearance? Color appearance is color temperature, which is measured in Kelvins. It ranges from 9000K (which appears to be blue) down to 1500K (which appears orange-red). Color temperatures of 4000K or more are considered cool, 3100K or less are considered warm. What is a footcandle? A unit of measurement indicating how much illumination is reaching a surface. It is equal to one lumen striking an area of one square foot. What is a candela? A candela is a unit of measure indicating the luminous intensity (candlepower) of a light source in a specific direction; any given light source will have many different intensities, depending upon the direction considered. Why should I be concerned about the mercury content of
