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. The CRI is determined by the light source's spectrum. The CRI of a light source does not indicate the apparent color of the light source that information is under the rubric of the correlated color temperature (CCT). If you are unsure about the exact color white light to use there are LED options such as the following link that enable one to change the CCT by means of remote control and CCT adjustable LED strip: click on the following pictures to get further information See the following example on our Instagram account that demonstrates kelvin:. 6000k which has a higher blue light make up 3000k) led your results are not going to be as impressive as using a cooler led e.g. you are attempting to light a blue (cool) color stone with a warm color (e.g. Why this is important in your project is that e.g. See the following example that we build for a customer to do a presentation to his client The fact that warm lighting in this sense actually has a cooler color temperature often leads to confusion Warm in this context is an analogy to radiated heat flux of traditional incandescent lighting rather than temperature the spectral peak of warm-colored light is closer to infra-red and most natural warm-colored light sources emit significant infra-red radiation. Color temperatures over 5000 K are called cool colors (bluish white), while lower color temperatures (2700–3000 K) are called warm colors (yellowish white through red). Color temperature is conventionally expressed in kelvins, using the symbol K, a unit of measure for absolute temperature. In practice, color temperature is meaningful only for light sources that do in fact correspond somewhat closely to the radiation of some black body, i.e., those on a line from reddish/orange via yellow and more or less white to blueish white it does not make sense to speak of the color temperature of, e.g., a green or a purple light. Color temperature is a characteristic of visible light that has important applications in lighting, photography, videography, publishing, manufacturing, astrophysics, horticulture, and other fields. The color temperature of a light source is the temperature of an ideal black-body radiator that radiates light of comparable color to that of the light source. Choosing the correct color (CCT) LED lightingīacklit onyx and onyx countertops are certainly becoming popular and the Kelvin (color temperature) of the LED lighting certainly plays an essential part in achieving the best result.Our article attempts to help you make the correct choices and at the same time avoid the costly mistake that so many designers and installers make. We pass on our experience in assisting our clients in projects using LED strip lighting to back light stone walls such as Onyx or Marble.
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