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What is KELVIN & How it is calculated & what different levels of Kelvin deliver & for what application?

Brillianz Electronic Systems has Brillianz Electronic Systems has a passion to help anyone understand further lighting terminology. With this in mind please find the explanation on Kelvin.
The colour temperature of a light source is the temperature of an ideal black body radiator that radiates light of comparable hue to that of the light source. Colour temperature is conventionally stated in the unit of absolute temperature, the Kelvin, having the unit symbol K.


Colour temperatures over 5,000K are called cool colours (bluish white), while lower colour temperatures (2,700–3,000 K) are called warm colours (yellowish white through red). Typically domestic lighting is preferred to be warm (2500K – 3500K), while commercial and retail lighting is generally neutral (between cool and warm – 4000K – 5000K)

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