Add Yahoo as a preferred source to see more of our stories on Google. You may not like what your UV flashlight shows you, but it can help you keep your home or ...

What if we could turn off the lights, flip on a flashlight, and watch the world transform in a dim purple glow? If you're a fan of forensic crime dramas, or you've used ultraviolet tools at work to ...

Ultraviolet (UV) stain finder flashlights come in all shapes and sizes. They are useful in a variety of ways. Black lights can help you spot urine stains, fake currency, or even deadly scorpions.

UV won't blind you any faster than any other light, it just increases the risk of cataracts (since the UV light is partially absorbed by then lens in your eye).

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