... 3.473nm Blue Laser Blue laser-473nm Blue DPSS Laser(20-150mW) Features:1.Ultra Compact 2.Lost Cost3.Long Lifetime4 ... Specifications:Model No:SPL-473B-20,30,40,50,80,100,120,150Wavelength(nm):473Output Power(mW)>20,30,40,50,80,100 ... Value) (mm) :2.0Beam Height From Base(mm):25Spectral Linewidth(nm)<0.1Polarization Ratio>100:1 Pointing Stability After Warm-up ...