With the cheapest price and six times intensity more than red lasers, green laser pointers aroused widespread concern. Comparing to blue laser pointers, green laser pointer can satisfy most people requirements. The power of green laser pointer ranges from 0.5 to 1000mw, and wavelength varies from 500 to 550nm. High power green laser pointer can be used in the fields of medical service, traveling, wild hunting and searching due to easy macroscopic identification.