Based on the advanced 445nm blue laser diode tech and a qualified optic lens, coupled with a metal heat sink cooling system inside a durable metal housing tube, it is designed and manufactured into a professional dot measuring tool of a 445nm blue laser diode module. Usually it is in need to make longer time lasted blue laser beam and blue reference dot projection from beam aperture. After easy connect with an external DC power supply and proper integration with desired machine or device, not spending extra time on prior battery change, this direct diode emission made blue dot laser alignment enables easy reaching, noncontact and no barrier blue reference dot generation onto any raw material surface conveniently. 
Basically 445nm blue laser diode module applies an import 445nm blue laser diode within 50mW to 100mW and 150mW to 500mW as its beam emitting source. Not the same as a simple laser pointer only used for temporary dot positioning works, it gets even better heat dissipation type of a metal heat sink cooling system inside a durable anodized aluminum alloy housing tube. Owing to its direct blue laser light source emission from an inner laser diode, not as bright as a 473nm blue DPSS laser system, the genuine use of a blue dot laser alignment enables long term lasted blue dot projection within 10 hours per day. It boasts excellent beam quality, with some single-model models exhibiting a beam quality factor M² < 1.2, beam pointing stability < 0.05mrad, and a clear and regular beam spot. 
Equipped with APC, ACC intelligent feedback electric driving circuit board design, whatever output power it is selected, 445nm blue laser diode module still keeps work with constant blue laser light and blue dot generation. It maintains stable performance under constant dot alignment work, bears wide range operating temperature, and other harsh working occasion of increasing temperature and serious electric current impact as well. It ensures stable blue laser dot projection over extended periods and a lifespan exceeding 10,000 hours. Equipped with adjustable focus optic lens, every time blue dot laser alignment gets high concentration blue laser light source emission, it converts into increasing brightness and accuracy blue dot projection at greater distance.
General applications:
In the industrial field, 445nm blue laser diode module can be used for laser marking, welding and engraving of thin non-ferrous metal sheets, and providing collimation and positioning for garment machinery and industrial robots. In the scientific research field, it is suitable for experiments such as fluorescence excitation, spectral analysis, and cell detection. In the medical field, 445nm blue alignment laser can assist in minimally invasive vaporization surgery for diseases such as benign prostatic hyperplasia, precisely vaporizing diseased tissue and reducing bleeding. It can also be used in stage laser performances, tunnel light source indication, and 3D printing positioning.