Magnifier with Light: This magnifier has 6 built-in LED lights, 3 white lights for general magnifying observation and 3 UV lights for bill validator magnifier. These energy efficient LED lights are designed to help you read at night or in dark places. 30X Magnification 25mm Dual Lens: Diameter 25mm/0.98", this optical glass lens with double coating provides clear images and good light transmission.The 30X objective is perfect for miniatures, jewelry or professional inspections. Sturdy and durable: made of solid zinc alloy with paint black. There are two precise graduations on the base: 1/16 inch and 0.5 mm. You can quickly measure the size of objects. This microscope magnifier is very durable and not easily damaged. Hands-free and easy to use: The focal length of this desktop magnifier is fixed and requires no adjustment.Just place the magnifier anywhere on the table and place the object in the middle of the scale.The white light and UV light can be easily turned on/off with just one button. Small and light: 60 x 52/*51 mm (/2.36 x 2.05 x 2.01 inch) is very portable, weighs only 190g (6.7oz), easy to carry.