... machine (JZ-3,JZ-3A), laser beauty, laser treatment, laser surgery, laser physical therapy etc; Portable 15W CO2 laser therapy apparatus (JZ-3, JZ ... and rapid with little pain to the patient.Major Specifications:Laser Wavelength;10.6 μm;Output Power: 1-15W, ... );Output Method: with two working head, focusing and defocusing;Laser Beam Output control: manual control;Cooling: inside circulating water ...