In a recent episode of MacGyver, an improvised ultraviolet light was created from an LED. How would this work and what is a blacklight?
DIY Blacklight: Use This Hack to Turn Any Smartphone Into a Blacklight
Make a UV Black Light at Home : 5 Steps (with Pictures) - Instructables
ReveaLED - The UV LED Flash Light for Smartphones by Bite Designs — Kickstarter
How to turn your phone into a Black Light - Tech Advisor
❤️ Upgraded Lamp Beads & Cure All Gel : This mni UV LED nail lamp beads adopt Upgraded UV+LED
DIY Lamp !~ uv/led flash lamp hands free
Why uvBeast? It's a brand with a reputation. Higher power and broader UV range gives you a wider range of uses, unlike other models - you get
Black Light UV Flashlight – High Power 100 LED with 30-feet Flood Effect – Professional Grade 385nm-395nm Best for Commercial/Domestic Use Works Even
How to turn your phone into a Black Light - Tech Advisor
Make a UV Black Light at Home : 5 Steps (with Pictures) - Instructables
Shortwave UV LED Flashlight (254nm UVC) - The Pocket Model – Stone Throne
Is there a UV flashlight app? - Quora
DIY Blacklight: Use This Hack to Turn Any Smartphone Into a Blacklight