... Red blue yellow led light therapy machine How does it work?Bio-Light Therapy is the interaction of light, delivered through Light Emitting Diodes ... Seven types of specific light source for clinical treatment; (Red, Blue, Yellow, Red+Blue, Red+Yellow, Yellow+Blue,Red+Blue+Yellow)2. Non-risk ... of applications for clinics or beauty salons; Specifications: LED colors Red, Blue, Yellow, R+B, R+Y, B+Y, R ...