1. With the compact LED UV flashlight, you can use an effective UV detector in any situation. They detect invisible dirt and can remove liquids, dirt and stains from the affected area. Territorial marking especially for incontinent pets and dogs, cats and rodents. The affected area glows brightly in the beam. Do not look directly at UV rays 2: Black light is most effective in the dark. Then stains and stains are particularly clearly visible. 3. Only 10cm long UV flashlight is perfect for use on the go. In unfamiliar environments, such as in hotels, you can spot hygiene deficiencies and protect yourself from germs. 4. Ideal for currency identification and checking the authenticity of driver's licenses, ID cards and passports. 5. Collectors use UV lights to track minerals (such as amber) that glow in different ways. The application possibilities are almost limitless.