Focusable Dot 405nm 20mW Violet/Blue Laser Diode Module 13x42mm Driver 3-5V

405nm 20mW Violet/Blue Focusable Dot Laser Diode Module. 1x 405nm 20mW Dot Laser Diode Module. For close range use. Laser Shape:Dot. Laser reflects blue/violet light depend on materials.

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