Review on 🔦 LE Black Light Flashlight - Small UV Lights 395nm - Portable Ultraviolet Light Detector for Invisible Ink Pens, Dog and Cat Pet Urine Stain - Includes AAA Batteries by Charles Collier

I bought two of these for scorpion hunting, works great (scorpions) turn on neon lights even when batteries are low. However, I had problems with the flash flickering after a few uses. I shook it, slapped it and tapped it on a hard surface to get it to work but to no avail, it just stopped. So I removed the end of the LED and noticed that the LED board was loose. So I took a punch and a hammer and tapped the two holes in the aluminum ring and tightened them. Viola works great now! I would have given 5 stars but I had to fix both. Oh and mine looks like pet pee and it looks more like the stain is still visible in the light after we removed the wine stain from the carpet. OR if, for example, the neighbor's cat comes and sprays our car or motorbike, I can see the stains perfectly at night. It gets quite warm with new batteries, but not so much that I can't hold it in my hands. Edit: The company contacted me to return it or fix the situation without any action on my part, thanks to them. It looks like the ring is threaded. Mine is bent now but I would try just twisting the aluminum ring and see if it can be tightened. Gave them another star for that. They even accepted my suggestion to tighten the lock or something to keep the ring from loosening and contacted the engineering department.