The highly selective endogenous melanin of Q-Switched lasers performs as a high-speed shutter.The laser rods store energy in high quantity and emits them efficiently on the most affected areas of the skin. The high-speed pulses have to exit on the affected areas to heal the skin from internally. In nanoseconds are pulses are emitted and the bean stays uniform to avoid any harmful effect.The super refrigeration system can not only ensure that the machine works continuously for 12 hours without stopping, but also can ensure the stability of the machine and the handle, and prolong the service life of the machine and the handle.The laser rod is the core accessory in the handle, and its quality directly affects the strength of the laser energy. Generally, the larger the diameter of the laser rod, the higher the energy. Our company adopts the laser rod imported from Russia, 7mm diameter, high energy and long service life