What do 3000K, 4000K, 5000K, 6000K mean?

Related: What to pay attention to when buying lights? How to buy lights? What does the lights parameter mean?

When we purchased lights, we found that the parameters of the lights were 3000K, 4000K, 5000K, 6000K, what's the meaning of these numbers? Now, let aipsun answer your questions.

First of all, we must understand a word: color temperature. The color temperature of a light source is the temperature of an ideal black-body radiator that radiates light of a color comparable to that of the light source. Color temperature is conventionally expressed in kelvins, using the symbol K, a unit of measure for absolute temperature.(Wiki: Color temperature).

Color temperatures over 5000 K are called "cool colors" (bluish), while lower color temperatures (2700–3000 K) are called "warm colors" (yellowish). In fact, the warmth and coldness here is a feeling, not the actual temperature. Simply put, we feel warm in the sun and cold in the deep sea, so we call the light close to the sun warm light, and the light close to the deep sea cold light.color temperature

From the above figure, we can see that the closer the color is to red, the smaller the value, and the closer the color is to blue, the larger the value. So now we know that 3000K-6000K is the process of changing from red to blue, 3000K looks like orange, 6000K looks like white, 4000K and 5000K are closer to natural light, so in the parameters of the lamp, 3000K usually means warm Light, 4000K or 5000K means natural light, 6000K means white light.

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