Magnifiers with light: This magnifier built-in 6 LED lights, 3 white lights for generally magnified observation and 3 UV lamp for money detector magnifier. These energy-efficient LED lights are designed to help you read at night or in dark places. 30X magnification Dual 25mm lens: 25mm / 0.98 inch in diameter, this optical glass lens with double layer provides clear image and good light transmittance. The 30X lens is perfect for miniatures, jewelry or professional inspection. Strong and durable: Made of solid zinc alloy with black paint. There are two precise scales: 1/16 inch and 0.5 mm on the base. You can quickly measure the size of the object. This microscope magnifier is quite durable and not easy to be damaged. Hands-free and easy to use: The focal length of this table magnifier is fixed and does not need to be adjusted . Simply place the magnifying glass anywhere on the table and place the object in the middle of the scale. White lights and UV lamps are easily turned on/off by a single button. Mini and lightweight: The very portable size of 60*52/*51mm (/2.36*2.05*/2.01in) , and only 190g (6.7oz), makes it comfortable for portable use.