Professional laser welding&cleaning machine manufacture about air cooled mode, water cooled mode, continuous laser mode, pulse laser mode. Continuous laser mode has laser power from 700W-3000W mode. Among above mode, 700W and 1200W is air cooled mode. 2000W and 3000W is water cooled mode. 1500W has both air and water cooled mode. Pulse mode 100W, 200W, 300W is air cooled mode, 500W is water cooled mode