LE Black Light Flashlight, Small UV Lights with 21 LEDs, 395nm, Ultraviolet Light Detector for Invisible Ink Pens, Pet Dog Cat Urine Stain and More, AAA Batteries Included Before❌ 18.74$ After✅ 6.99$ https://www.amazon.com/Flashlight-Portable-Ultraviolet-Invisible-Batteries/dp/B00GU556SA?tag=all0ad0-21