... laser module 1.WL:658nm 2.Output power:50mW 3.Laser class:IIIb 4.Beam Divergence:.1mrad ~ 0.6mrad Red dot laser moduleCharacteriscicsHigh-quality laser diode ... ,optical glass lens, driver circuit and housingHigh reliability, high stability, long life,low priceApplicationsIndustrial marking devices, laser medical ...