Laser Module 5V 2mm Red

From the shop's description

Specifications: Lead Length: 7cm Head Maximum diameter: 12mm Rotating parts diameter: 8.2mm Device parts Length: 23mm Operating voltage: 4.5 V 51 Resistance In the ideal case (no dust, no fumes, no barrier), the laser transmission distance is infinite. The laser head in the case of high air quality, operating current to 20MA, the transmission distance can reach more than 1KM; In general, cloudy night, exposure to 500 meters away from objects, it is clearly visible; For a closer distance, even in the sun of the day, shone on the pavement,outside the building,it is also clearly visible. Application: production of electronic pointer pens, electronic tuner, lights, remote control, instrumentation.