observation, and 3 UV lamp for money detector magnifier. These energy-efficient LED lights are designed to help you to read at night or dark places. 30X Magnification 25mm Dual-Lens: 25mm/0.98inch in diameter, this double-layer optical glass lens provides clearing imaging and good light transmission. 30X lens is perfect for miniatures, jewelry or professional inspection. Solid and Durable: Made of solid zinc alloy material with black paint finish. There are two precise scales: 1/16 inch and 0.5mm on base. You can measures the size of the object quickly. This microscope loupe is quite durable and not easy to damage. Hands-co.ukee and Easy to Operate: The focal length of this table magnifier is fixed and no need to adjust. Just place the loupe anywhere on the table, and place the object in the middle of the scale. White lights and UV lights are easily turned on/off by only one button. Mini and Lightweight: The very handheld size of 60*52/*51mm(/2.36*2.05*/2.01in), and only 190g (6.7oz),