What is the color temperature of LED street lights and the corresponding light color

LED street lights emit white light at a color temperature of around 5000K, and yellow or warm white light at around 3000K. Yellow or warm white light at around 3000K is more suitable for road lighting, while LED street lights at around 5000K are not suitable for road lighting. Because a color temperature of 5000K can make people visually very cold and dazzling, leading to excessive visual fatigue, and under such color temperature conditions, people's ability to observe from a distance will also decrease. The packaging process can obtain LED white light sources with different color temperatures by applying fluorescent powders of different excitation wavelengths and adjusting the amount or proportion of fluorescent powders.

Color temperature is a scale that represents the color of a light source. When the radiation of an absolute blackbody is exactly the same as the radiation of the light source in the visible range, the temperature of the blackbody is the color temperature of the light source. The color temperature of light emitted by different light sources varies. The characteristic of low color temperature light sources is that there is relatively more red radiation in the energy distribution, which is commonly referred to as "warm light"; After the color temperature increases, the proportion of blue radiation in the energy distribution increases, commonly referred to as "cold light". Medium color temperature, with a color temperature in the middle of 3000-6000K, there is no particularly obvious visual psychological effect for people under this color tone, and there is a refreshing feeling; So it is called "neutral" color temperature. When using a medium temperature light source for illumination, give blue a cool feeling.