Lasted technology Non-channel 808nm/755nm/1064nm three wavelengths diode laser with Germany imported laser chips (Jenoptik ) & higher power treatment handle. Our device utilizes upgraded technology Non-channel laser system , which brings more highly effective treatment result and comfortable feeling. As the lower demand of the water temperature, the laser handle can tolerate the high temperature at 60°C so that machine can work well at room temperature 50°C . Even the temperature gets higher in summer day , it can work continuously for 12-24 hours without any problem .It ensures longer working hours than any other technologies 808nm diode laser in the market . You will never suffer from the handle - burning problems again and again! ! ! The laser handle is up to 20,000,000 shots with 3 different spot size 15mm*15mm /20mm*25mm / 25mm*31mm for your optional. 808nm diode laser Working Principle :                                      Laser hair removal technology is based on the selective dynamics of light and heat. The laser goes through the skin surface to reach the root of hair follicles; light can be absorbed and converted into heat damaged hair follicle tissue, so that hair loss regeneration without injury surrounding tissue.Painless, easy operation, the most safe technology for permanent hair removal nowadays. laser hair removal machine adopts 808nm/755nm/1064nm, 3 wavelength particularly effective to hair follicle melanocytes without injury surrounding tissue. The laser light can be absorbed by hair shaft and hair follicles in the melanin, and converted into heat, thus increasing the hair follicle temperature. When the temperature raises high enough to irreversibly damage the hair follicle structure, which disappear after a period of natural physiological processes of hair follicles and thus achieve the purpose of permanent hair removal . laser hair removal machine 755nm Wavelength: For the widest range of hair types and color. The Alexandrite wavelength offers more powerful energy absorption by the melanin chromophore, making it ideal for the widest range of hair types and color- especially light-colored and thin hair. With more superficial penetration, the 755nm wavelength targets the Bulge of the hair follicle and is especially effective for superficially embedded hair in areas such as the eyebrows and upper lip.   808nm Wavelength: Standard wavelength in underarm laser hair removal Machine is 808 nm . It offers deep penetration of the hair follicle with high average power, a high repetition rate and a large spot size for fast treatment. The 808 nm has a moderate melanin absorption level making it safe for darker skin types. Its deep penetration capabilities target the Bulge and Bulb of the hair follicle while moderate tissue depth penetration makes it ideal for treating the arms, legs, cheeks and beard.  cheap laser hair removal machine China