What's the color temperature of the LED?
LED color temperature is expressed by absolute temperature "K", that is a standard blackbody heating, when the temperature rises to a certain degree, the color begins to change from dark red - light red - orange yellow - white - blue, gradually, a light source and the color of the blackbody at the same time, the absolute temperature color of the blackbody is the color temperature of the light source.
Related Theory of color temperature
Because the relative color temperature is actually a blackbody radiation approaching the light color of the light source, the evaluation value of the light color performance of the light source is not an accurate color contrast, so the two light sources with the same color temperature value may still have some differences in the appearance of the light color. The color temperature alone does not allow us to know the color rendering ability of the light source to the object, or how well the color of the object is reproduced under the light source.
Variation of color temperature
The color temperature of the light source is different, and the light color is different: the color temperature is below 3000K, and the light color is red to give a warm feeling; There is a stable atmosphere, warm feeling; The color temperature is in the middle of 3000-6000K, and people have no particularly obvious visual psychological effect under this tone, and there is a refreshing feeling; Therefore, it is called "neutral" color temperature; The color temperature exceeds 6000K, and the light color is blue, giving people a cool feeling. A. color temperature and brightness under the irradiation of high color temperature light source, if the brightness is not high, it will give people a Yin atmosphere; Under the irradiation of low color temperature light source, the brightness is too high will give people a stuffy feeling. b. Contrast of light color in the same space using two kinds of light color difference of the light source, the contrast will appear hierarchical effect, light color contrast is large, while obtaining the brightness level, but also obtain the level of light color. The use of low color temperature light source irradiation, so that the red has a bright sense; The use of medium color temperature light source irradiation, so that the blue has a cool feeling; The use of high color temperature light source irradiation, so that the object has a cold feeling.
How to choose the color temperature of Outdoor Lighting?
Outdoor lighting can not only provide basic lighting for people's night activities, but also beautify the night environment, enhance the night scene atmosphere, and improve comfort. Different places use different lighting lamps to illuminate and create atmosphere, color temperature is an important selection factor in the selection of lamps. So, what color temperature is appropriate for different outdoor lighting?
1, The color temperature of conventional outdoor lamps is 2000K-6000K. Residential district lamps and lanterns with 2000K-3000K color temperature are used, which can make residents feel more comfortable visually.
2, The villa courtyard choose more lamps with a color temperature of about 3000K, which can create a warm and comfortable night atmosphere, so that the villa owner can better feel the comfortable leisure life at night.
3, The ancient building lighting multi-use 2000K and 2200K color temperature lamps, emitted yellow light, golden light can better reflect the simplicity of the building, the atmosphere.
4, Municipal buildings and other places can choose more than 4000K color temperature lamps, municipal buildings give a solemn feeling, that is, to reflect solemn and can not be stereotypical dull, the choice of color temperature is particularly important. Choosing the right color temperature can highlight the atmospheric, bright, solemn and simple image of municipal buildings.
5, Most of the highways choose a color temperature of 6000K, it's pure white lighting at this color temperature, which can provide better lighting effects and a clearer lighting field of view. However, in areas with more rain and fog, wind and sand, the color temperature of 2700K-4000K is better, more penetrating and safer.
