1 of 1 people found the following review helpful
Verified Purchase(What is this?)
This review is from: Enjoydeal 12 LED UV Ultra Violet Lamp Torch Flashlight for Camping (Misc.)
Didn't think a torch this cheap would provide effective UV illumination, but, yes, you can see dried stains on carpets which are invisible in normal ,light. Varnishes and certain dyes also fluoresce surprisingly. Took me a few minutes to work out how to insert the batteries - no instructions.