... lasers 635nm are widely used in laser display, spectrum analysis,measurement,biomedicine,laser medical equipment, laser light show,ect.Specifications: ModelDT635D3W,DT635D4W,DT635D5WWavelength635nmOperating modeCWOutput ... professionally make many kinds of laser modules ,like as dot ,line /cross line laser module,DPSS laser,uniformline laser,single longitudinal mode green laserbeam ...