It means that when a standard black body is heated, the color begins to start from the dark red-light red-orange yellow-white-blue blue, and gradually changes. When the color of a light source is the same as the color of the black body, we call the absolute temperature of the black body at that time. The color temperature of the light source.

Generally speaking, the color temperature does not serve as an indicator of the LED light belt, but many foreign customers will make a special requirement because of the relationship between the environment.

The color of the light source is different, and the light color is different:

The color temperature is below 3300K, and the light color is red to warm; there is a stable atmosphere, a warm feeling. It is called warm color temperature.

The color temperature is in the middle of 3000--6000K. There is no particularly obvious visual psychological effect under this color tone, and it has a refreshing feeling. Therefore, it is called "neutral" color temperature

The color temperature exceeds 6000K, and the light color is blue, giving people a cold feeling, which is called cold color temperature.