... rejuvenation: Safe, comfortable, easy and painless solution to the face relaxed, sagged,wrinkled and so on ... area: 8mm*40mmLight range: 530nm-1200nm 640nm-1200nmpulse width: 1-25msPulse mumble: 1-6 pcsPulse delay: ... .5.according to the site of hair, color, hair thickness adjustment energy density, pulse width, number of ... with the skin during treatment and each pulse should have a little overlap.7.after ...