... corium and connective tissue, stimulates the collagens of different depth to realign and grow, then gets treatment effect. Bio-polar ... the same time, with the selective absorption for the skin to light energy, various pathological tissues of corium and epidermis ... handle12*30mmEnergy0-30J/cm2(IPL) 0-30J/cm2(RF)Pulse width1-10msPulse number1-10Pulse interval1-40msShot period(Frequency)1-5sCooling ...