How to Make UV Light Out of Your Phone's LED Flash

In a recent episode of MacGyver, an improvised ultraviolet light was created from an LED. How would this work and what is a blacklight?

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How to turn your phone into a UV light (and see hidden messages)

This Hack Turns Any Phone into a Black Light « Smartphones :: Gadget Hacks

Black Light - UV light for Android - Free App Download

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This Hack Turns Any Phone into a Black Light « Smartphones :: Gadget Hacks

How to make a UV (black light) with your cell phone light

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How to turn your phone into a Black Light - Tech Advisor

How to turn your phone into a Black Light - Tech Advisor

How to make my phone into a UV light - Quora

How to turn your phone into a Black Light - Tech Advisor

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