The purpose and use method of magnetic laser pointer

According to international standards, high powered laser larger than 5mw will cause harm to the human body, so please use it with caution. It doesn't matter if the power is occasionally dangled to the human body or eyes. As long as you don’t stare at being photographed, there will be no problem. Long-term exposure to the eyes may cause serious damage to the retina and macula, and even permanent blindness. Play-Many people like the brightness of the laser, and they like the process of lighting firewood, cigarettes, and other substances with high-power lasers. Simply put, they are laser enthusiasts. Lasers of different colors and powers have different properties, and their brightness or ability to point something is also different. High-power laser, because the laser light itself has temperature and burns. So you can light matches, cigarettes and the like. If this type of laser is accidentally irradiated to the human body, there may be an instant burning sensation. If it is at the high-power focus, the burning sensation will be stronger and it may hurt the skin.