How long does iqoo8 burn and change color?

The color matching of iQOO 8 model adopts photochromic technology, which is a clever combination of photochromic materials and the technological design of the back cover of mobile phone, so that the back cover of mobile phone changes color after absorbing sunlight, and then gradually recovers its original color after leaving sunlight, thus realizing the color light change of the back cover of mobile phone; In addition, iQOO 8 "burning" is affected by light intensity, wearing of mobile phone protective case and other factors, and the discoloration effect and duration are different. Please refer to the actual experience.