[masraum]

Originally Posted by rusnak

There is none. Lasers are very useful in science, medicine, industry, transportation, etc but there really is zero use as a flashlight unless somehow the light can be transformed into a broader spectrum.

Apparently that is a thing

Originally Posted by aigel

NFW would that be legal for sale in the US. There are UL certifications for light sources and if you can start a fire or take your eye out, it won't be a consumer product. I have seen that commercial. It is BS.

That said, laser based flashlights are real and they use a laser to excite a phosphor. That creates a very bright and concentrated white light spot. The smaller the spot the more narrow a light beam can you create. This is how laser high beam headlights work on cars. The light is not direct laser light. It is white (multiple wavelengths) and incoherent, which makes it safe to your eyes.