There are also flashlights that use a laser to generate white light and can shoot an intensely bright beam beyond 500 yards. They make my convenient, but weak, phone light look like ancient technology ...

I’ve tested a collection of flashlights over the last year by using them for EDC, around the house, and while hunting and fishing. I also collected beam comparison photos to help you find the right ...

The BeamLux II laser beam diagnostic system from Metrolux (Göttingen, Germany) enables high-resolution, real-time monitoring and quantitative characterization of spatial light-intensity distribution.