Vansky X7 Pro 365nm UV Light Blacklight Flashlights: LED Black Light Flashlite Professional Ultraviolet Flashlight Pet Urine Detector for Dog Cat, Resin Curing and Rock Hunting(Batteries are Included)

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Works great. Big difference from my 395nm light. We have been using it to look for fluorescent minerals.

Used to detect uranium glass, very powerful, just what I wanted, quality torch.

Good quality

This puts out UV light at slightly shorter wave lengths (365 nm) than other small UV lights (395-405 nm), and many things that won't fluoresce with a 395-405 nm light may fluoresce with this one. The light doesn't appear especially bright in daylight (don't be tempted to look directly into the lens), but in a darkened room, the results can be startling. Pet accidents, bathrooms (even when spotlessly clean), and carpets take on a whole new appearance. Optical dyes on clothing from detergents glow bright blue, as do some pet stains, stationery, some pigments in paintings, fabrics, and cleaning chemicals. Filaments in LED bulbs glow orange. This particular flashlight seems well made and very easy to use. Battery placement is critical--follow the instructions when inserting the (supplied) batteries. All in all, well worth the price.