Blue laser module gets the special adoption of 445nm blue laser diode as its laser beam emitting source. It generates less brighter laser light than 473nm blue DPSS laser made laser device, however, the direct blue laser diode emission laser device just assures its highly stable and reliable performance and quite competitive production cost. This blue laser module is quite charming and attractive laser beam emitting laser source, which is not only workable for formal presentation uses, but also gets special applications in laser displaying, laser medical treatment, laser decoration, communication, and military targeting etc.