The Importance of Color

For food refrigerators, the true color is particularly important, as the brightness of the lighting determines one's appetite and the color of the lighting affects one's consciousness. Different products have different correlated color temperatures (CCTs). The color temperature of a light source refers to the temperature in Kelvin (K) when the color of the light emitted by the light source is the same as the color radiated by a blackbody at a certain temperature. Lower Kelvin values usually produce warmer light, appearing red or yellow, while higher Kelvin values produce cooler light, appearing white or blue.