The only minor criticism of this 3000mW green laser pointer is that it is a bit difficult to turn on the light with one hand with your thumb. I want to turn my laser pointer on and off. It should also be noted that some laser radiation can cause skin tissue damage. In fact, in the red and infrared spectral range, the skin tissue absorbs the energy of the laser light by causing a thermal phenomenon (tissue heating or burning). Power output is superior to more expensive products in its class. I know some people say they look for multiple modes like blink mode and multiple output power settings, but I hate them.
I also like that you can focus it or do it at a wide angle. I mostly use the lights to see the inside of my kennel and avoid any mishaps I don't notice (as this is one of those plastic crates with a lid). It also works well when viewed under the hood of a vehicle. However, the discovery of stimulated emission alone is not enough to make a laser. In fact, in matter, there are many more atoms, ions or molecules in the non-excited state (ground state) than in the excited state. It is therefore impossible to induce enough stimulated emission to generate laser glove light. When you first highlight a cheap green laser pointer, hearing them skip it will definitely get their attention, but not the second time because they already know what a 200mw green laser pointer is. These different items are very useful, even if you find your students or teachers wondering how a piece of equipment is out of their sight.
Medium power lasers (<5 mW). Dangerous direct vision if seen for more than 0.25 seconds or through optical instruments. Some people think they're buying a gadget, but end up with a weapon in their hands. The most common is the pen shape, used by lecturers, but laser pointers come in all shapes and sizes. This type of high power laser pointer can cause serious injury. They are commonly used in laser pointers or optical alignment lasers.