635nm 638nm Orange Red 5mW Laser Pointer Pen Class IIIr Safety Certificated Product Description 635nm 637nm 638nm 5mW Orange Red Laser Pointer Pen Laser Class IIIr Safety Certificated Specification Output: <5mW Wavelength: 515nm±10nm Working Voltage: 3V (2 pcs- 635nm 650 780 808 980nm Laser Driver Board APC with TTL 0-15Khz for Low Power Laser Diode
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