How to make a UV (black light) with your cell phone light - YouTube
Make a UV Black Light at Home : 5 Steps (with Pictures) - Instructables
DIY Blacklight: Use This Hack to Turn Any Smartphone Into a Blacklight
LIGHTFE Black Light UV Flashlight 365nm Blacklight UV301D with LG LED Source,Black Filter Lens, Max.3000mW high Power for Resin Glue Curing Light, Rocks and Mineral Glowing,A/C Leak Detector - - Amazon.com
How to turn your phone into a Black Light - Tech Advisor
How to Make UV Light Out of Your Phone's LED Flash | WIRED