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Nichia Ndb7k75 / Ndb7k75t Φ9mm Blue 450nm 3.5w-5w Laser Diode For Laser Modules (soldered)) - Stage Lighting Effect - AliExpress
High Quality New 8x 3.5W /28.5W NUBM05 450-460nm Blue Laser Diode Module: Amazon.com: Industrial & Scientific