YUANNENGJI Antes de responder a esta pergunta, devemos primeiro saber o que são temperatura de cor e brilho? Temperatura de cor (temperatura de cor) é uma escala que indica a cor de uma fonte de luz, e a unidade é K (Kelvin). A temperatura da cor tem aplicações importantes na fotografia, videografia, publicação e outros campos.
A temperatura de cor de uma fonte de luz é determinada comparando sua cor com um radiador teórico de corpo negro térmico.. A temperatura Kelvin quando o radiador térmico de corpo negro corresponde à cor da fonte de luz é a temperatura da cor da fonte de luz, que está diretamente relacionado à lei de radiação do corpo negro de Planck.
O fluxo luminoso refere-se ao poder radiante que o olho humano pode perceber, which is equal to the product of the radiant energy of a certain band per unit time and the relative visibility of the band. Since the relative visibility of the human eye to light of different wavelengths is different, when the radiant power of light of different wavelengths is equal, the luminous flux is not equal, which we usually call brightness. Portanto, our SMD LED and SMD LED lamps produce light color K by exciting phosphors with 460nm blue light. It can be adjusted from 1000-100000K according to needs. Commonly used are warm light 2000K-3500K, natural white 4000K-5500K, pure white light 5500-6500K, and cold white light 6500.
Because the relative visibility of different wavelengths of light is different, when the radiation power of light of different wavelengths is equal, its luminous flux is not equal, that is to say, the color temperature and brightness of the same product and the same material are different. Por exemplo, um 2835 chip is the brightest at 28-30lm between 5500-6500K, but at 3000K it is 26lm-28LM, and above 6500 it can only reach 26-28LM. The higher the color temperature, the lower the brightness. In addition to color temperature, there is also color rendering, which has a great impact on brightness. Similarly, between 5500-6500K, 28-30lm is the brightest, but if it is made into a color rendering index of 80, it becomes 26-28lm, and the material is the same as that of 30.