本发明涉及LED照明技术领域，提供了一种LED光源，其中，本发明的LED光源包括：芯片，所述芯片的峰值波长为400nm‑425nm；荧光层，所述荧光层涂覆于所述芯片的出光侧；所述LED光源产生的光线中，450nm‑500nm波段的相对光谱功率小于3％。本发明的LED光源能够满足家居照明的同时，尤其是卧室和客厅照明要求的同时，在夜间减少光源对褪黑素分泌抑制的影响，让人们有一个良好的睡前光源环境。

The invention relates to the technical field of LED lighting, and provides an LED light source which comprises a chip, wherein the peak wavelength of chip is 400 nm and 425 nm; and a fluorescent layerwhich is coated at the light emitting side of the chip. In the light rays generated by the LED light source, the relative spectral power of the wave band of 450nm and 500nm is less than 3 percent. The LED light source disclosed by the invention can meet the home lighting requirements, especially the lighting requirement of the bedrooms and living rooms, and reduce the influence of the light source on melatonin secretion inhibition at night, so that people have a good pre-sleep light source environment.