Specification Item PDT led lights skin careWavelength Red 640nm yellow 583nm green 532nm blue 423nmBright intensity 1 9 levelTime selection 1 90minInput voltage AC 100 240V 50 60HzOutput voltage DC 12V 3APower per light 0 01mwLED quantities 287pcsNet weight App 3KGSize App 40cm 23cm 30cm Note 1cm 10mm 0 39inch How does PDT light work LED offer a totally natural non ablative method for skin rejuvenation The light from the LED interacts with cells and stimulates them to produce new collagen and elastin bio light therapy Studies confirm that the same LED energy can be used to inhibit collagen formation which can be helpful in the treatment of scars By manipulating the wavelengths cells can be turned on and off Yellow light are used for photo rejuvenation Blue light are used in the treatment of acne Red light are used for photo dynamic therapy green Light effective reduce melanin cell decreased pigment formation Four kinds of light functions Red LightPenetrate the skin 1 6mm The most penetrating power promoting recycling and increase the oxygen content in the blood activating cells enhancing energy efficiency promoting collagen proliferation improving wrinkles effective treatment of aging skin relaxation and products deep absorption ease the scars of Acne relieve pain allergic dermatitisBlue LightPenetrate the skin 1mm Bacteria killing skin cleaning cell activation promoting protein osseincomposition Calming sensitive skin Green LightPenetrate the skin 0