Adjustable Focal Laser Dot Generator Blue Diode Module 450nm 5500mW With TTL DC 24V 12V
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Adjustable Focus High Power 5500mW 450nm Blue Diode Laser Module With TTL DC 12V / 24V
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5.5w 450nm Blue Laser engraving machine cutter (without TTL) module 5500mw laser diode