Over the years, laser pointers have been significantly improved in terms of technology and usability. There are many different laser engraving options to choose from, whereas in the past there were only a few options. When using high-power Class III and Class IV lasers, this is far from the truth. The risk seems to be small, because it's just a green laser pointer, doesn't it? But the reality is that these high-power lasers are not toys, but tools that can be used responsibly or irresponsibly. A far cry from the old keychain lasers sold by street vendors, the powerful diodes integrated in many lasers today ensure that laser safety equipment can be used in almost any situation and can be used indoors. Until recently, we sweared by 532nm high-power handheld devices...until we compared the 532m green laser with 520nm. With the popularity, excitement, and demand behind the 532nm wavelength, it is difficult to contradict the old mentality of "if it’s not broken, don’t fix it", but we did it. Some lifelong laser enthusiasts may be stingy to watch our reassessment, but when it comes to guessing, we don’t shoot in the dark (unless we’re playing with lasers); there are data to save our switches at a wavelength of 520nm .
The handheld laser adopts an adjustable focal length design to provide customers with more convenient functions. Among high-power lasers, blue lasers are representative of high-power. Let's take a look at the blue high powered laser pointer. High-power laser pointers of more than 10 milliwatts, and 250 milliwatts as an online sales reporter, obviously constitute the above-mentioned three or four evils. Specifically, when the laser light emitted by the laser pointer reaches the sensitive body part of the retina, it will cause damage to the eyes. In addition, after being used as a dazzling light for a long time, it will also affect the optic nerve and central nervous system, making people dizzy and even nauseous. Class 1, 2, and 3A lasers are low-power lasers, and Class 3B and 4 are high-power lasers. The GB document recommends the use of Class 3A laser devices, "a laser safety officer should be designated" and provide users with protective glasses and protective clothing when needed, especially for Class 4 laser products.