What is the output power of the laser pointer?

A laser pointer is a beam of visible light with a very narrow coherence low-power laser emitted from a laser diode with a power supply and a small handheld device, intended to have a small colored light spot by illuminating what it is used to highlight something of interest. In most jurisdictions, the output power limit of the laser pointer must not exceed 5 mW. In the United States, lasers are classified by the American National Standards Institute [5] and the U.S. Food and Drug Administration (FDA). Visible light (wavelength 400-700nm) laser pointers with output power less than 1 milliwatt are classified as Class 2 (Class 2 or II); those with power between 1-5 milliwatts are classified as Class 3 A (Class 3A or IIIa). Class 3B (Class 3B/IIIb) lasers (power 5–500 mW) and Class 4 (Class 4/IV) lasers (power greater than 500 mW) cannot be promoted and sold in the name of Laser pointer by law. The output power of the laser pointer is fixed, and it is also priced according to the power level. I sell the laser pointer in Tianjin. My work experience is to use the laser pointer if it is not too bright at the beginning. If the pen is not bright, you should also consider whether the battery needs to be replaced. If you really need a brighter pen, buy a high-power one.