... ultraviolet wavelength killed the germs,acne treatment effectively. ApplicationsE light (IPL+RF) for hair removal, freckle removal & skin care480 ... therapy, acne treatment530----1200,freckle removal640----1200,hair removalOptional filters:430----1200, acne treatment580----1200,vascular therapy560----1200, ... size8*40mm2, 10*30mm2 or 15*50mm2E-light energy0-50J/cm2(IPL) 0-20J/cm2(RF)Pulse frequency1~4S, ...