Zoom Use: Extend and retract the body to switch between a round floodlight for broad area illumination and a glare spotlight for longdistance viewing, providing an adjustable field of view. Wide Applicability: Features a 365 nm UV wavelength to reveal hidden details such as moss, pet urine, counterfeit currency, jade, and more. Suitable for both home and business detection tasks. Convenient Charging: Builtin rechargeable lithiumion battery with overcharge protection; USB charging; charging stops automatically when full. Robust Material: Constructed from a sturdy aluminum alloy for reliable durability and longterm performance. Usage scenarios Home and vehicle inspection: Locate pet urine or hidden stains on carpets, upholstery, and around the home; detect moisture and cleanliness issues that are not visible in ordinary light. Security and verification: Check currency authenticity and inspect documents or surfaces for security marks; assess jewelry or stones such as jade for authenticity cues under UV light. Work and professional settings: Use in shops or maintenance environments to reveal hidden residues, stains, or marks during cleaning, remodeling, or quality control.