With the iteration of LED technology, especially the technological updating of Yujileds® phosphors. As a leader in LED spectroscopy engineering, we successfully simulated and commercialized CIE illuminators using a single LED for the first time in the world.

Unlike other illuminants that are based on real or typical light sources, CIE illuminant E represents a perfectly uniform light source that emits equal energy at all wavelengths. Because of this property, no artificial light source could simulate illuminant E before. Yujileds® realizes the simulation of illuminant E from 450nm to 780nm through the combination of chip and phosphor.