big q-switch laser machine 1. professional q-switch 2. Competitive pulse width:8ns 3. CE, manufacturer. Q-switch ndyag laser machineBig q-switch Model: G- NYBig q-switch laser machine Suitable for: 1.1064nm: Birth mark, coffee spot, freckle, senile plaque, pigment from outside injure, black, blue tattoo, eye line, eye brown and lip line etc. 2.532nm: Red and brown pigment, red spot and mole, ...