Treatment principle: Diode laser hair removal system is accomplished when destroying the hair follicular unit by the thermal damage of laser fluence and thus inhibiting future hair regrowth by the follicle. The widely optional pulse duration (Max1500ms) of 808 diode laser system can produce thermal damage in hair matrix stem cells and ensure follicular destruction. In order to minimize the uncomfortable of thermal damager to surrounding skin cells, an efficient skin--cooling system is used to chill the skin before, during and after the hair removal treatment. Therefore, 808 diode laser is more effective for hair removal in patients even with dark skin. Specification: Light Source: Diode laser Wavelength: 808nm Power: 2000w Energy density: 1~110J/cm2(continuous adjustable) Pulse Duration: 10~1,200ms(continuous adjustable) Pulse frequency: 0.5-10Hz Spot size: 12*12 mm Cooling system: Thermal electric cooling + water cooling+ Air cooling Crystal temperature: -5-5°C LCD screen: 12.4 inch 24 color multi color touch screen Power requirement: AC220V/110V 50-60HZ