30X rechargeable magnifying glass with light is great for jewelry, gems, antiques, coins, rocks, stamps, rocks, hobbies, watches, photos, science, models, etc. The lens is made of K9 optical glass, professional to help your work. We adopted advanced materials to make this high-quality jewelers loupe. Adjustable focal length allows you to clearly see uneven jewelry and coins. You can twist the upper part of the magnifying glass until clearly see the detail. Under the 30X loupe magnifier, you can see clearly distinguish and see objects, like small text, cracks on jewelry, coins, textures of stamps, and so on. Press and hold the button in white LED lighting mode to adjust the lighting brightness. It can be infinitely adjusted between strong-weak or weak-strong. There are two scales: 1/16 inch and 0.5mm on the base. You can measure the size of the object quickly. You can take it apart when you don?t need to measure the size. These 4 white lights are very bright to help you see clearly in the dark. If the lights you received do not work. Please contact the seller to get a new product. Colorful objects will show different colors under UV lights, and you may see it obviously during purple lights. You can also check your currency with UV lights. Come with a soft artificial leather case to protect the lens. It's convenient to carry at hand and store anywhere. Adjustable Focal Length - Place the magnifying glass on any object to be viewed. Then rotate the upper part of the magnifying glass until you can clearly see the item. You can move it as needed. The scale can also be used to measure item size. Adjustable Brightness of White Light- Press and hold the button in white LED lighting mode to adjust the lighting brightness. It can be infinitely adjusted between strong-weak or weak-strong. Choose the most suitable lighting brightness according to different usage environments, and the brightness after turning it off and on again will be based on the last adjusted brightness. ABS Plastic Material - Made of high quality ABS plastic material with black paint finish. It's quite durable and not easy to damage. This 30x magnifier has a len of 1.1 in diameter, 4 white light and 4 purple UV light. This little magnifier will be a good helper at work. Easy to Turn On/Off - Just Press down the soft silicone button to turn on the 4 white lights for usual magnified observation, and press again to 4 UV lights for the money detector magnifier. Press the third time to turn off the light. Wide Application - It is very small and light. You can put it in your bag when you go to the suburbs or the memorial. It's a professional work magnifier, great for printing, fossils, gemstones, handcrafts, watch repairs, reading coins, jewelry and stamps.