... , skin whiten, pore-refining, remove blackheads etc. Technical ParametersLaser TypeQ-switch, ND:YAG solid state laser (belonging to4 class lasers)Wavelength1064nm532nmPulse ... SpecificationMa×5a900mj (double pulse)Pulse Frequency1Hz~6HzDimension40×25×29(cm) (L×W×H)Power SourceAC220V±10%,50HZAC110V±10%,60HZPacking Dimension47×34 ...