Laser type: Q-Switch Nd: YAG laser Special Advantages of Laser Tattoo Removal Equipment: (1) Water-flow monitor: Alarming ring for "abnormal water flow" on the operating screen and stop warming-up automatically when there is small or non water flow. (2) Water-temp monitor Alarming ring for "high temp" on the screen when the temp is higher than 45 (3) Accurate infrared guiding light (4) 120 cm standard radiator (5) Best technology solutions for No burnt structure inside the laser hand-piece Special Advantages Laser type Q-Switch Nd: YAG laser/Wavelength:1064nm, 532 nm Pulse energy:350~1000mj/Pulse width:8-10ns/Frequency:1~6Hz/ Spot size:1~5m��Powersupply:AC220V/AC110V50Hz/60Hz /Power:300W/ Dimension:400x220x200mm3/Weight:10 Kgs