Product Details UV Blacklight Penlight 1. Packaging Information Contents: The package contains multiple UV blacklight flashlights. This quantity is designed to meet your daily activities. You can conveniently store them in different locations, such as your car or home. Battery Requirements: Each flashlight requires 2 AAA batteries, 2. Application Range Inspection and Detection: These UV penlights are ideal for hotel room inspections. They can reveal human and pet liquid stains, bugs, and rodent contamination areas that are invisible to the naked eye. In addition, they can be used to verify currency, official ID cards, and passports. This makes them useful for both personal hygiene inspections and security-related tasks. 3. Size and Portability Suitable Size: These small UV lights are shaped like a pen and are 5.2 inches long. This size makes them highly portable as they can easily fit into your pocket or bag. The compact design also ensures that they can be comfortably held in the palm of your hand, suitable for people with different hand sizes to operate. 4. Easy to Use and Carry Operation: The power switch of the mini blacklight flashlight is easy to use and can be easily operated with one hand. This is convenient when you need to quickly turn the light on or off while your other hand is occupied. Carry: Each pen flashlight comes with a detachable pocket clip. This allows you to easily attach it to your belt, bag, shirt or pants pocket, ensuring the flashlight is always within reach. 5. Durability and Weather Resistance Waterproof Material: The small flashlights are made of durable aluminum alloy. They have unbreakable and scratch-resistant lenses. These features make the flashlights reliable in rainy and snowy weather conditions. In addition, they can withstand accidental drops and temporary submersion in water, ensuring long-term use even in less than ideal conditions.