In any type of highly clear and accurate dot alignment at longer work distance than formal hand reaching, it is not easy to reach with a simple manual dot projecting tool or a simple blue laser pointer. On contrary, the advanced use of 445nm blue laser diode module with 5V, 9V 1000mA DC power supply assures constant blue laser beam emission and highly clear blue dot alignment as long as 25 meters and other formal lighting occasion as well.
This 445nm blue laser diode module is applying qualified glass coated lens. It also gets up to 24 hours aging preventing and beam stability test up to 24 hours, after special use of a glass window, it is working well with good laser light cycling use, and highly stable blue dot alignment within long lasting use, no effect by moisture or dust. Only if it gets proper installation and adjustment of beam focus, it assures high precision and high brightness blue dot alignment at long work distance perfectly.