1) Nd: Yag Laser 2) 532nm, 1064nm 3) Q-switch 4) CE 5) OEM, ODM ... . This is called "selective heat absorption" principle in medical field.2. Functions* remove kinds of colors tattoos ( blue, brown, black, red ... -swith Nd: YAG LaserWavelength1064nm, 532nmOutput Energy160mj, 350mj, 600mjPulse Duration8~10nsFrequency1,2,3,4,5 ,6 HzPower SupplyAC 220V/ 50HzPower250WSize490x290x300mmWeight10KG