What is the effect of color temperature of LED on brightness? So what are color temperature and brightness? Color (u) r temperature is the scale representing the color of a light source, measured in Kelvin. Color temperature has important applications in fields such as photography, video recording, and publishing. The color temperature of a light source is determined by comparing its color with the theoretical blackbody radiator. The temperature at which the thermal blackbody radiator matches the color of the light source is the color temperature of that light source. Luminous flux refers to the radiation power that the human eye can perceive, which is equal to the product of the radiation energy of a certain band per unit time and the relative visibility of that band. Due to the varying relative visual acuity of the human eye towards light of different wavelengths, when the radiation power of light of different wavelengths is equal, its light flux is not equal. We often refer to it as brightness. So our LED light-emitting diode excites the fluorescent powder with blue light at 460nm to produce a color (K), which can be adjusted from 1000-100000K according to the needs. The commonly used colors range from 2000K-3500K to warm light, 4000K-5500K to natural white light, 5500-6500K to normal white light, and above 6500 to cold white light. Due to the different relative visual acuity of the human eye for different wavelengths of light, when the radiation power of different wavelengths of light is equal, their light flux is not equal, That is to say, the same product and the same material have different color temperatures and brightness. For example, a 2835 LED bead is the brightest at 28-30lm between 5500-6500K, but when it reaches 3000K, it can only reach 26-28LM from 26lm-28LM to 6500 or above. As the color temperature increases, the brightness decreases. In addition to color temperature, there is also color rendering, which has a significant impact on brightness. Between 5500-6500K, 28-30lm is the brightest, but when made to 80, it becomes 26-28lm