With some models in the green laser pointer II range you have visible beam of 80 miles

I have seen some pretty spectacular for the length of the beam from the green laser pointer II model.I believe they have a pretty spectacular length of the beam, very conspicuous in the dark.You don't just get the spot, you get a whole beam, just goes on, it depends on the intensity of the laser, sometimes miles.This is a fact, a 200 MW pointer beam is visible 80 miles! When the laser which brand would you choose to buy always ask about warranty.If they just want to give 30 days - 3 months is a little cautious, because it seems to say, they hope their product to decompose.
For at least 6 months warranty, this will mean that the product will be more reliable.If you are using a laser than 5 MW you would be well advised to use protective glasses.Most of these laser pointer is neat, small enough to fit in your pocket, they look almost like a pen.
I believe that another useful application, a green laser pointer II is hiking or any other type of outdoor activities, they will be great for you to find a specific target.You can let it always see when you put the beam.The green beam reflection of particles in the air and on atmospheric conditions in time or use, the beam can be reached from 15000 to 25000 feet.The beam must remain in a minute.With a 5 MW battery will last pointer and normal use 2 - 4 hours.
There are some very attractive laser pointer, you can use as a star projector.A model of cap, if you want to stay in the pattern in the sky, either indoor or outdoor walls and ceiling.When you want to use as the conventional green laser pointer only delete mode cap.If you buy a good quality of laser can expect it to work normally, years of luminescence.Try to avoid the laser pointer you to any hard surface, as this may affect the calibration and calibration to the laser is one of the best performance of the necessary.Seem to have a lot of countries will prohibit any higher than that of low intensity laser.I think you need to take these actions at face value, they seem to indicate that there are too many irresponsible people use pointers in a bad way.This is always a shame when a few break things for most people, but this is what happens when people abuse of this type of product.
No doubt, they can be dangerous in the wrong hands, especially in the hands of a child.You should not let the children to deal with a green laser pointer II unless strict supervision.