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445 nm Low Noise Blue Laser Diode MLL-III-445 — HJ Optronics, Inc.
Industrial Blue Lasers 445nm 447nm 450nm 50mw Dot Diode Module w/Driver Out and TTL & Fan Cooling: Amazon.com: Industrial & Scientific
4W Industry Laser 445nm/447nm/450nm 4000mW Blue Laser Dot Module Diode NDB7A75 w/ TTL0-20kHz & Fan Cooling & Long Time Working: Amazon.com: Industrial & Scientific