Red Laser Pointer, Red Laser Pointer Pen | Laserpointerpro
Apr 27, 2021· Red laser pointer, wavelength 630-670nm green laser pointer is more for longer. The first red lasers was released in the early 1980s. Nowadays, the More durable transmitted red light air, dust, water vapor, so the light path can be seen to need more power. 100 mW red laser pointers probably only about 20 milliwatts, and green. Do remember that red lasers are …