The LED Flood Light flash function of mobiles for Selfie

Camera is one of the most important functions in mobile phones. The high popularization has made it hard for us to find mobile phones without this function. Similar to digital cameras, mobile camera also needs flash as supplementary light source to improve the quality of photos.
So what is the advantage of double color temperature flash verses other types of flashes? Here is the brief introduction.
We all know that single LED flash is made by one LED chip with white light source. Since most LED flood light is made by white light added with fluorescent powder, the spectral range of this flash is limited. There will be more blue light, less green and red light, which may lead to color distortion and pale color of photograph. Moreover, single LED Lighting can provide limited brightness and small range which is very limited.
If single white light LED Lights are not enough, then how to cope with it? Manufacturers simple come up with the method of equipping two white LED flashes. And now many popular products are using double white light LED flash.