Infrared Dot 940nm 800mW Powerful IR Laser Diode Module TTL Modulation 33x80mm

1x 940nm 800mw laser diode module. Notice: 940nm IR lasers can't be seen the light by bare eyes. Red wire connects”+” pole; Black wire connects ”-” pole. TTL 3-5V on, 0V off. Modulation frequency :TTL output port 0-5V input 1HZ-100KHz.

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