Whenever line alignment work is processing onto various working surfaces, not simply relying on manual line drawing or line printing work, it is never an easy job after the use of advanced laser diode tech applying device of 445nm 50mW blue line laser module. It is performing with formal brightness blue laser light directly from inner laser diode. After production into an industrial stabilized laser line generator, it is just able to work with most compact size tube diameter and high stable and reliable blue line alignment in continuous use. The usual use of 50mW blue line laser module is operating easy and quick. It applied import 445nm blue laser diode as beam emitting source. It is just emitting moderate brightness blue laser light from inner laser diode, which is not as bright as 473nm blue DPSS laser system. Although it gets high output power of 50mW, however, it is still adopting quite small size tube diameter of 16mm. The durable aircraft used aluminum alloy housing tube makes good configuration with inner metal heat sink cooling system. It is achieving superior nice thermal conductivity, and also keeping work with highly stable and reliable blue line alignment within wide range operating temperature as well.Under operation with the best quality glass coated lens, not affecting by any laser light decay or blur, 50mW 445nm blue line laser module is performing with high linear quality blue reference line projection. When it is applying for various working environments, owing to its wide range fan angles of 10 degree to 110 degree, this blue laser line generator is projecting highly straight and fine blue line in distance. It is a basic issue to get main learning of line length, line fineness and work distance, it would be recommending with correct optic lens degree and achieving highly precise blue line alignment in distance.After a series of strict laser beam stability tests and quite special use of glass window in front of laser beam aperture, this 50mW 445nm blue line laser module is achieving highly stable blue laser beam emission, and clear blue line alignment without any affect by any moisture or dust at all. Whatever kind of working surface it is pointing, in order to achieve the finest line positioning result, this alignment laser enables quite easy screw of adjustable focus optic lens. When users are paying high attention to any thermal energy hurt to human eyes and wearing proper laser safety goggles, without any eye exposure to beam aperture, it makes high security line alignment in distance perfectly.