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Under special use of highly stable and accurate dot alignment at quite long work distance, it is far more enough to reach with a simple blue laser pointer, it makes better job with a Berlinlasers 445nm blue laser diode module within 50mW to 100mW. The advanced use of cooling system is configured with 16mm diameter metal housing tube, which enables good thermal emitting and highly reliable blue dot projection in constant use. Employed by DC power supply, within freely installed distance of 3 meters, this 445nm blue laser diode module enables easy reaching, no barrier and long lasting blue laser beam and blue dot indication in constant use. It allows long lasting dot alignment within 10 hours. Under operation of correct use of output power and freely adjusted blue dot diameter, it achieves high precision and long lasting dot indication for all application fields. Applications: industrial precise dot alignment, laser show, laser displaying, laser communication, military targeting, optical instrument and high tech work etc https://www.berlinlasers.com/445nm-blue-laser-diode-module
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