... high stability, long life,low price DM650D1 Red Laser Module Characteriscics:High-quality laser diode,optical glass lens, driver ... 635nm are widely used in laser display, spectrum analysis,measurement,biomedicine,laser medical equipment, laser light show,ect.Specifications: ... modules ,like as dot ,line /cross line laser module,DPSS laser,uniformline laser,single longitudinal mode green laserbeam ...