Without overclocking, a 445-450mW laser pointer can reach 6-7W. If overclocked, the green laser pointer can reach 10W, but the service life will be significantly shortened. If you search for 50000mW laser pointers online, you will see many counterfeit merchants, their "50000mW" is only 3000W, while the actual laser power marked "20000mW/30000mW" is usually around 1000-2000mW. This behavior will mislead many inexperienced buyers, so please carefully identify the authenticity of the specifications before purchasing.
Use in astronomy
An important use of visible lasers is in astronomy, mainly for pointing at stars. Because of the unique ability of high power laser pointer to emit straight and highly visible beams clearly in the night sky, they can be pointed precisely at stars and constellations. Often, you'll find lasers attached to the telescope, and if adjusted properly, they can help guide the telescope into the correct position. A topic often discussed by astronomers, many wonder whether to use green or red lasers for stargazing. This is subjective, but I'll give you some opinions (but remember, it's my opinion).
Green lasers increasingly useful for astronomy
Green lasers will be increasingly useful for astronomy. The reason is simple, green lasers are easier for users to see than red and other colored lasers - that's it. Now, we should consider a few other things to help explain why green lasers are more popular than the competition.
One of the main reasons why green lasers are so popular, especially high-power lasers, is because of the light-sand beams they emit. Their openings are slightly wider than simple pointers, and when the rod comes into contact with air or atmospheric particles, it is reflected; that's why the beam is so visible on green lasers.
