This Jewelry Loupe Magnifier used for antique, jewelry identification, electronic maintenance, precision machining, printing, gardening, stamp collecting and other industries. Note: 1. Do not put a magnifying glass directly exposed to the sun, the eyes do not aim at the focus, to avoid be burnt. 2. When the sun is direct, do not place flammable materials under the focus. 3. The higher of the Magnifier magnification, the smaller you can see the scope. In order to obtain a larger field of vision, the distance between the eyes and the lens shall be closer. Details: This Jewelry Loupe Magnifier with LED Light designed for seniors, hobbyists, professional jewelers, watchmakers, and coin & stamp collectors. Made of scratch resistant acrylic lens and premium ABS. Lightweight and portable design make it convenient to carry wherever you go. Built-in light source: 2* LED lights: Provide an evenly lit viewing area under low-light conditions. 1 *UV light: Counterfeit currency detection. Specification: Battery Model: LR44 (included) Product Size: approx 8.5cm x 4.6cm Voltage: 1.5V Lens Diameter: 30X-25mm.60X-12mm.90X-8mm Push Slide to Turn ON and OFF Illumination: LED light & with currency detection function UV light Packing list: 1*Loupe Magnifier 3* LR44 battery 1* Instruction 1* Screwdriver 1* Package box