Fractional resurfacing is a new laser treatment modality that creates numerous microscopic thermal injury zones of controlled width, depth, and density that are surrounded by a reservoir of spared epidermal and dermal tissue, allowing for rapid repair of laser-induced thermal injury. This unique modality, if implemented with proper laser-delivery systems, enables high-energy treatments while minimizing risks. Specifications Specifications Laser Type: 10.6¼ m Output Power: e20W Starting Voltage: d25kV Operating Voltage: d15kV Operating Current: d25mA Focal length of working head: F= 50mm Indication Beam: Diode Laser( 532nm, 5mW) Transmission System: 7-Articulation Joint Spring Arm Smoke Exhausting System: Built-in air blow Cooling System: Water cooling Environmental temperature: 5-40C Relative Humidity: d80% Power Supply: AC220V; 50Hz Dimension: 430mm* 350mm* 1050mm