2.One centimeter LED to skin, close and direct illumination structure
3.Power from 0-100% randomly adjust, frequency from 1-5000hz randomly adjust
4.Professional testing equipment(Thor labs optical meter, Megger meter, Tektronix oscilloscope)
5.High quality electronic component, stable electric system(Customized LED driver, Customized touch screen control panel, MeanWell power source, Balseal solid relay, High air flow silent fan)