... , light weight, easy operation and convenienc. Portable 15W Co2 laser therapy instrument (JZ-3, JZ-3A) have advantage of small size,light ... :Laser Wavelength: 10.6 μm;Output Power: 1-15W, continuously adjustble (JZ-3); 1-15W, 10 levels pre-programmed (JZ-3A);Output Method ... 110VAC,50Hz;Contour Dimension: 500*430*130mm;Weight: 6kgs(JZ-3), 9kgs(JZ-3A); 15W CO2 Laser Therapy Apparatus