1064nm, 532nm, carbon assisted tips for black and brown pigment, 1064nm carbon assisted tip for skin care. automatic water detector cooling+air cooling QL-40 use Q-switch nd yag laser technology. Laser can be absorbed by the blue and black melanin. The melanin will split into an even more tiny particles. They are so small that they can be metabolized by the lymphatic system and be egested out of the body. The system adopt 600W laser power supply, energy reach to 1200mj. Special designed 8 true color touch screen control panel, easy to use. Automatic checking water temperature and water flow, assure the safety use of machine. With 3 laser tips can do various treatments of tattoo and pigmented lesions removal, laser toning and so on..syi