3W High Power LED Emitter UV 365-368nm/ 370nm / 380nm / 390nm /395nm /400nm / 410nm /420nm | Satistronics
Amazon.com: UV Light Strip USB UV Black Light Strip DC5V 390nm-400nm 6.56FT/2M SMD 3528 120LEDs IP65 Waterproof Super Bright LED Strip Lights, for Fluorescent Dance Party Body Paint Stage Lighting (USB) :
UV/UVA 400nm Purple LED 5mm Clear Lens - 10 pack : ID 1793 : $4.95 : Adafruit Industries, Unique & fun DIY electronics and kits
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