Since ancient times, "sky" has been a Chinese complex. Siheyuan in Beijing and Shikumen in Shanghai all admire the sky. Elais blue sky lamp is an epoch-making one. It uses nano polymerization technology, after two years of fine grinding, perfectly simulates the Rayleigh scattering effect of the atmosphere, and achieves the effect of being very similar to sunlight and blue sky in both visual and somatosensory temperature. High precision optical design, 45 ° Tilted beam, precise light control, more concentrated light. So as to present the deep and transparent sky, with ingenuity to nature.