This is a 1mW 635nm Red Laser Module Focusable Dot M635D1-3--0821. APC accompanied by high-performance driving circuit and optical coated glass lens group.Module focusable dot has high-quality laser diode, optical glass lens, driver circuit and housing. Red laser module has high reliability, high stability and long life. Industrial marking devices, laser medical equipment, stage lighting and laser targeting devices and so on. Red laser module is suitable for various industrial marking, industrial laser modules, swinger type laser light source, teaching test light source, laser medical equipment, stage lighting and laser positioning device.Practical and reliable, this laser module focusable is really a fantastic gadget you should have!