Roceei 10 Pieces UV Blacklight Flashlights, LED Light, Handheld, Mini Light Torch Detector, Portable UV Flashlight Torch for Pets Stains Urine (Purple Light)

These work great ... Black lites are awesome. Great value.

Mucho mejores que otras opciones disponibles.

These lights were fun to use as a group for a class. The students had a ball and they were able to use them with ease.

Got these to help supply co-workers when working in a Halloween haunted house setup to help guide guests and not blind everyone, as well as not ruin anyone's established "night vision". This greatly pleased the individuals performing the scares, as they also did not get blinded, and continued to be able to work comfortably. I did spend more on the batteries than the flashlights themselves just to power all of them, but they worked amazingly well for the two months that we used them.I _WILL_ state though, that they are NOT rugged. If you drop them, they may not function afterwards. Only had one of the 10 actually fail gloriously when the front guts actually came out of the body after being dropped. They do work perfectly for all things that react with UV, and they do have a nice bright purple tint included so you can actually see with them and not just have the UV like some lights.

Got these after we used one in a rock shop to see minerals glow. It was so much fun we came home and got a bunch. My son is a geologist and has had a great time passing them out to fellow rock nerds and shining it on everything in their collections and in their houses.