... quality 5.CE,FDA,ROH Blue and violet light,cross line 20mW Detailed Product Description and Product parameters:Product Size12*40mm ... : 532nm 30-50mW,or100mW Red: 650nm 100mW.or 200mW Blue: 473nm 100mW or 200mWAdvantageshigh quality, good stability, long lifetime ... , Laser Positioning Surveying Instrument, Laser Sight and so on.. Any questions,please contact us! Blue and violet light,cross line 20mW