Turn Your Phone Into A Black Light Hack. Its super easy to do! ... paint that sucker in. Things You Need:-Smart Phone-Scotch Tape-Blue Sharpie-Purple Sharpie. ... Bio: We're a couple thats obsessed with all things geeky! And we make You ...A blacklight (or often black light), also referred to as a UV-A light, Wood's lamp, or simply ..... Due to its shorter wavelength, it is absorbed less and reaches deeper into skin ... such as hydroxyl and oxygen radicals, which in turn can damage DNA and result in a risk of melanoma. .... European Society for Pigment Cell Research.