This is where most users are unfamiliar with the specifications and statistics required for laser pointer recommendations to be certified as instructions of the green star pointer lasers. At least 200mW of wattage is required to generate enough heat to illuminate matches, burst balloons, etc. The laser less than 200mW has no risk of burning. There are many tools for stargazing and astronomical research, and the green laser pointer has become the best choice for stargazing due to the high brightness and visibility of its laser beam. Laser pointers with a wide output range from 1 mW to 10,000 mW are available for astronomy researchers and enthusiasts to choose, and the beam of this type of laser can be seen from 100 miles away. Astronomers can use the green laser to see stars and constellations in the sky. The beam is very bright and people can clearly see the celestial bodies. This quick and easy aiming can make you feel that your naked eyes are almost touching the stars.
The application of the green instructions of the green laser pointer took a step forward in the demonstration. These are also widely used in outdoor activities, especially those activities carried out at night. Mountain climbing, camping and hunting or sports activities at night require some kind of sign. When two people are far apart, one person may need to point each other from one place to another so that one person knows where the other person is in the dark. There are other colors of laser pointers available, the most common is the 532nm green wavelength. In recent years, the yellow 593.5nm-orange laser pointer has also begun to emerge. The 450nm laser pointer appeared blue in September 2005. At the beginning of 2010, a "blue" (actually purple) laser pointer with a wavelength of 405nm appeared. The brightness of the laser pointer spot depends not only on the laser power and the reflectivity of the surface, but also on the sensitivity of the human eye to color.