What are the popular laser pointers？

The Green laser pointer is the most popular laser pointer in the world, because the green light is 6 times brighter than the red light, the beam is more obvious than the red light, and the price is much cheaper than the blue and yellow light. Laser pointer users generally choose the green light pen. The green laser pointer is often used in teaching. It is a modern teaching mold and equipment. The teaching laser pointer is the third-generation writable laser pointer. Teachers, trainers, and lecturers all touch when they make teaching demonstrations and project demonstrations. To this kind of embarrassment, it is necessary to explain while operating the computer, and the movement is restricted, which is very inconvenient. Green light pen is the abbreviation of "green laser pen", and can also be called "green laser pen", "green laser pen", "pointing star pen", "green laser pen" and so on. The green light pen is the most popular laser pointer in the world, because the green light is 6 times brighter than the red light, the beam is more obvious than the red light, and the price is much cheaper than the blue and yellow light. Laser pointer users generally choose the green light pen. How to completely liberate users during teaching and demonstration, and truly realize "where to go, where to talk, where to talk, and where to point". The emergence of laser pointers really solved these problems and freed the speakers completely.