Maximum Efficiency:The special UV lamp is used as the treatment light source(PL-S9W/01/2P), which has the characteristics of high stability and long life; Comb Design:KN-4003BL is not only suitable for the irradiation of the face, limbs and other parts, the unique comb design can also take into account the treatment of the scalp. Buit-in timer:The blue liquid crystal display, coupled with the microcomputer timing function, eliminates the trouble of time calculation and improves the accuracy.