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Laser Diode - 5mW 650nm Red : ID 1054 : $5.95 : Adafruit Industries, Unique & fun DIY electronics and kits
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Amazon.com: HiLetgo 10pcs 5V 650nm 5mW Red Dot Laser Head Red Laser Diode Laser Tube with Leads Head Outer Diameter 6mm : Industrial & Scientific
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