The purest red laser pointer beam

This 650nm red laser pointer is enough for formal demonstrations such as school education, star research and astronomy research. strength. By the way, no matter what green laser pointer you point at, don't try to see it on moving vehicles, airplanes, or airplanes. When browsing slides in a presentation, you don't want to bind it to your computer and press the key. So you need a wireless device. USB mice look perfect, but they have a disadvantage because the computer does not respond to the mouse inconsistently. So today we have a 640 nm 5 mW laser pointer beam, which is very bright for the eyes. In addition, there is a lighter pointer on the market with a wavelength of 533 nm (green). This new technology uses a frequency-doubled neodymium:YAG laser, which has blocked infrared components. Permanent 5mW output power allows you to worry-free, use the star to point school education, university reading, exhibitions, lectures, astronomy, etc. The constant Class II 5mW red laser pointer will not harm human eyes and skin even if staring at the beam or beam.