... diode laser 2. Wonderful design 3. Perfect result for hair removal Product Features1, 100% sapphire high efficiency light transmissions system, strong power ... supply system for high stable laser output.2, Exellent contact cooling for ... 6, Emergency stop system.Specification1,Power supply: AC110V~120V or 200V-240V 50Hz2,Laser Energy: 40J/cm2, 1~50 ...