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High Power 638nm Red Line Laser Diode Module 300mw 500mw 700mw 1000mw With Cooling Fan (free With Bracket And Adapter) - Woodworking Machinery Parts - AliExpress
4.5W 638nm Fiber Coupled Laser Diode Module
Lasertack - New Laser Generation. 1W 638nm Laser, HL63373HD
Oclaro HL63193MG 5.6mm 635nm 638nm Red 700mw Laser Diode / High Power | eBay
637nm 1.2w 638nm Red Laser Diode LD HL63283HD Brand New TO5 9.0mm: Amazon.com: Industrial & Scientific
638nm Laser Diode Module | Free Space or Fiber Coupled Module
LASER TREE 638nm 2400mW High Power Red Laser Diode with FAC Square
Amazon.com: Oclaro 635nm 638nm 700mW Red Laser Diode LD HL63193 Brand New : Industrial & Scientific