What is the color temperature: When the external radiation source color and blackbody radiation outside the same color, then the blackbody temperature is the color temperature of the light source. Color temperature influences on human emotions. Generally, we have three color temperature ranges, 2800-3200K, 4000-4500K and 5700-6500K.1) 2800-3200K-Red, yellow-based. Lively, warm, happy, relaxed. But poor people would have the emotional hot dry feeling.2) 4000-4500K-Red, green, and blue content of a certain percentage of each. Close to the sun. It gives a natural, comfortable and secure feel.3) 5700-6500K-In a large proportion of blue. Dazzling, giving serious, quiet, calm feeling. Also make the body feel too cold.Different uses LED lighting color temperature selection recommendations: PlaceColor TemperatureReasonSchool: classroom, library,4500-5000KSchools need a quiet, serious, you need lively. Students eye more effort should be concentrated. . Students living most of the time in the cl