Light Source: Eight times atmospheric pressure Multi-band hand-piece: 530nm/640nm Energy density: 0-50J/cm2 Frequency: 1 - 4s Pulse number: 1-6 Sub-pulse width modulation: 0.5-10ms Pulse space: 1-50ms RF Frequency: 10MHz RF Energy: 1-50J Cooling system: Japanese semiconductor+ wind + water +cooling gel Light spot area: 8x40mm2 Size: 52x45x125cm Weight: 40kg.