This treatment tip can vaporize the outermost layers of skin across a large surface by creating thousands of tiny, microscopic laser wounds, spaced in an even pattern across the skin, but leaving areas of healthy, untreated skin between them, the lower collagen layer of the dermis is stimulated to renew and repair. The surface of the skin now contains only microscopic surface wounds, instead of one large, red, oozing burn. With the fractional treatment, the evidence of the ongoing healing and rebuilding process is more subtle, taking place deep in the dermis (where there are less pain receptors), leaving the protective epidermal covering much more intact. After some recovery, the newly-generated skin is remarkably smoother and suppler. Specification: Light Source RF excited CO2 Laser Wavelength 10.6ª¦m Laser Power 12W Pulse Width 0.1ms~1000ms,CW Pilot beam 635nm, diode laser Treatment area 30 í- 30mm2 Scanner mode Random Standard pattern 5 Power 220V/5A, or 110V/10A Size:74*53*33cm Weight:32.5KG