... perfect feel for different skin types, Red 12pcs LED:630nm ; Green 12pcs LED:520nm ; Blue 12pcs LED:465nm 3.This product has three colors ... : red, white, pink, and give you more choices, ... , and promote the formulation of collagen. a. Red Light: Wavelength 465±3nm 12 LED. Activate cells, promote the formulation of collagen. ...