Color temperature describes the color of a light source. The color temperature is given in kelvins, but appears to be warmer the lower the value is. Neutral white light has a color temperature of 3300 to 5300 K. If the color temperature is below 3300 K then the light is warmer, while it is colder if the temperature is above 5300 K. The color temperature provides information about the light color, but not the color’s quality or reproduction. As a general rule of thumb: The higher the kelvin value, the cooler and whiter the light. Conversely, the lower the kelvin value, the warmer the light.
Cold white light and daylight white is cool, sober and exudes a bluish hue. This has a stimulating effect and boosts the concentration, making it perfect for work (office).
Neutral white light is neutral and sober, and has little influence on a room’s ambiance. Therefore, this color temperature is strongly recommended for use in the kitchen or bathroom.
Warm white light has a pleasant, comfortable and dimming effect. It has a yellowish appearance (similar to a sunset) and is therefore perfect for evenings spent relaxing in the living room.