Light Source: eight times atmospheric pressure. Multi-band hand-piece: 480 nm/530nm/590nm/640nm/690nm 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: 1-50 Light spot area:13í-30mm2 /13x40mm2/ 15í-50mm2 Cooling system: Japanese semiconductor+ wind + water +cooling gel Size: 43í-58í-110cm Weight: 55kg Voltage: 220V(110V)/15A 50Hz(60Hz).