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Qianfabeam Laser Module 405nm Violet Purple Blue Laser "Dot" Diode (Adjust Focus 5mw DC3V-5V): Amazon.com: Industrial & Scientific
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DTR BDR-209 405nm Laser Diode shows a blurry square light. | Laser Pointer Forums - Discuss Laser Pointers | High Power Lasers
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3.8mm 405nm Cw 200mw Pulse 350mw 400mw Blue Violet Uv Laser Diode Ld To38, No Sld3237vf Sld3237vfr - Instrument Parts & Accessories - AliExpress
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