1pcs Violet/Blue Dot 405nm 20mW Focusable Laser Diode Module Driver 3-5V

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

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