Astronomy Laser Pointer Canada has captured wonderful moments

If you need a green laser pointer to reach SOS outdoors, 200mW power is sufficient. The divergence angle should be as small as possible so that the beam is more clearly visible from a distance. In addition, the blinking function (pulse mode) can enhance the effect of SOS. Although the laser pointer is powerful and can do a lot of work, it should be safe when used. If you blindly pursue high power, it will bring danger and increase costs. Many users search the Internet for "5000mW green laser pointer" and often find many results in Google-we can be 100% sure that this is fake! To ensure availability and safety, please carefully identify and select before purchasing. The red laser pointer is easier to make, the wavelength is about 600 nanometers, the technology is mature, and the semiconductor processing materials are mature. The wavelength of the green laser is about 530nm. At present, the semiconductor laser technology in this band is not very mature. Therefore, the green laser pointer is expensive and low in power. Many amateur astronomers or astronomy clubs use or wish to use a green laser pointer, whose beam is clearly visible in the night sky. For this, there must be a laser pointer of at least 5mW, and the 1mW beam is almost invisible.