Typically, there are some people choose green laser pointer for presentations in our daily lives, and lower power laser gadgets was enough. Regardless of whether for fun or for practical use in everyday life, green laser pointers are a great choice for presentations. Low power green laser pointer is usually a class of laser diode for presentation, business conference, a concert site, KTV, bars, astronomy and so on. Usually, people will look for a green laser pointer from 5mW for classroom teaching presentations, conference or class PowerPoint presentation. People only see the light spot of the 5mW laser gadget while it has been enough to for class teaching while teacher needs to point something on the screen in front of the classroom, and it is convenient to use in classrooms today. Teachers will not be limited to only standing on the platform but they can stand any necessary place in the classroom.
In addition, the gadget with low power is also very important in the application of astronomy. In astronomy teaching or research, teachers or astronomers would always shake hands, wave arms and explain loudly which star they are pointing at. However, it is quite annoying if comprising a large group of people while they still do not see what you are pointing at no matter how difficult it is to explain the celestial bodies. Has not been the discovery of green laser pointer, it is hard to give people such bright light and a lot of comfort to enjoy the astronomy research. The green laser beam is visible both at night and during the daytime, and it is great comforts to astronomers to have a quick light of stars and constellations. The bright point of light is a wonderful tour of the celestial body.
It is not enough for the astronomy application of green laser pointer while it is used for presentation, and the gadget is still viable while mounted on a telescope. The laser light has allowed men a long distance watching of celestial objects, and you can always get compliance faster and clearer at the same time.
The green laser pointers from 5mW to 150mW are useful for the presentation, and it is obvious that higher power laser gadgets are generally brighter and more visible than lower ones. You should always make sure that your eyes are safe from the radiation from the bright light of laser pointers whenever pointing a laser pointer in the sky.