It refers to the heating of a standard black body. When the temperature rises to a certain extent, the color starts to change gradually from dark red-light red-orange-yellow-white-blue. The color of a certain light source is the same as that of the black body.
Generally speaking, the color temperature is not used as an indicator to assess the LED lamp belt, but many foreign customers will make a special requirement because of the use environment.
The color of light varies with the color temperature of the light source:
Color temperature below 3300K, light color red gives warm feeling;
Have sedate atmosphere, warm feeling., generally called warm color temperature.
The color temperature is between 3000K and 6000K, so there is no obvious visual psychological effect under this tone, and people have a refreshing feeling.
Therefore, it is called "neutral" color temperature
Color temperature is more than 6000K, the light color is blue, giving people a cool feeling, generally known as cool color temperature.