Colour Temperature or Kelvin (K) Rating refers to the colour of a light source in reference to the Kelvin scale. K Rating is often confused with a light’s intensity but the two are very different.
Commercial lighting often varies between 3,000K and 6,000K depending on the application. With 5000K considered daylight, many LED manufacturers aim for colour temperatures that offer a more natural looking light.
The difference between 3000K and 6000K is dramatic as highlighted in the images to the right. The 3000K product is much warmer looking compared to the cooler 6000K.