On consideration of high accuracy and high stability dot projection at longer distance than formal hand reaching, it makes an efficient job with a direct diode emission made Berlinlasers 445nm blue laser diode module within 50mW to 100mW. Cooperating with an import laser diode and qualified glass coated lens inside a high duration metal housing tube, after its projection of high transmittance blue laser light source emission, it also makes highly clear blue dot projection at long extending distance. This charming blue laser light emitting tool brings users good dot alignment experience for laser show, laser displaying, laser communication and high tech work etc.
https://www.berlinlasers.com/445nm-blue-laser-diode-module
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