... -switch 4) CE 5) OEM, ODM Portable 250W 532/ 1064nm Nd: YAG Laser Tattoo Removal Machine Product Information1. Working Principle Laser ... brown colors5. Technical Specifications Type of LaserSolid-state Q-swith Nd: YAG LaserWavelength1064nm, 532nmOutput Energy160mj, 350mj, 600mjPulse Duration8~10nsFrequency1,2,3 ...