LED - Violet 5mm - COM-12704 - SparkFun Electronics

These 5mm clear UV / Purple LEDs emit UV 'blacklight' in the UVA spectrum so they are great for projects with fluorescent materials referred to as UV/blacklight-reactive or 'glow-in-the dark'. They are bright (350mcd) and have about a 20-degree LED beam. They go easily into a breadboard and come in a pack of ten so you can easily add that extra UV light to your project.

adafruit-UV/UVA 400nm Purple LED 5mm Clear Lens - 10 Pack ADA1793

Metalux SHP 4 ft. 96-Watt Equivalent, Integrated LED, White Shop Light, 5000 Lumens, 4000K CCT

5mm - SparkFun Electronics

LED - Violet 5mm (25 pack) - COM-09851 - SparkFun Electronics

Retired (Page 5) - SparkFun Electronics

UV/UVA 400nm Purple LED 5mm Clear Lens - 10 pack : ID 1793 : $4.95 : Adafruit Industries, Unique & fun DIY electronics and kits

5mm - SparkFun Electronics

LED - Violet 5mm - COM-12704 - SparkFun Electronics

5mm - SparkFun Electronics

UV/UVA 400nm Purple LED 5mm Clear Lens - 10 pack : ID 1793 : $4.95 : Adafruit Industries, Unique & fun DIY electronics and kits