... waves 3) 2 BIO waves 4) LCD screen led light therapy IntroductionPhototherapy has long history, the ancient Greek, ancient ... lot of lights of different wave-lengths, there are infrared light, visible light (imply red, orange, yellow, green, black, orchid, purple), ... – protection(wave-length 590nm)(6) Cyan light (G+B) –luminous(wave-length 640nm)(7) White light(R+B+G) –ducting(wave-length 510nm ...