[USB RECHARGEABLE MAGNIFIER]: The Magnifier for Reading has 33 built-in LED lights with 3 brightness modes and dual lenses of 30X at the same time. Magnifying Glass for Reading has an USB interface,which can be recharged at any time.Lighted Magnifying Glass can be used continuously for 26 hours of low light conditions. Magnifier with Light can last for 8 hours of high light conditions,it can be used continuously for 6 hours of super light conditions [LARGE MAGNIFYING GLASS]: Magnifying Glasses with Light overall sizes of the lens is 11 inches , the diameter of the lens is 4.3 inches and the total weight is 0.44 pounds (200 grams ) . Large Magnifying Glass is very suitable for the Elderly,Children,Macular Degeneration patients and people with low vision to use and carry [ MAGNIFYING GLASS WITH LIGHT]: The Magnifying Glass is made of high quality PMMA lens to ensure the image is clear and undistorted,lighter than glass,more scratch resistant. Magnafining Glass with Light smooth surface,light weight,ergonomic,and optical grade lenses can make you clearly see small print details carefully and relieve eye pressure [MULTIPURPOSE MAGNIFIER]: The high powers magnification for reading to provide 30X magnification ideal of close work, Magnifying Glass 30x is suitable for observing details of photos,maps,electronic products,miniatures,jewelry and various handicrafts.Magnifying Glass with Light can also be used to read books and see the fine print on medicine bottles [A MAGICAL AND COMFORTABLE GIFT]: Reading Magnifier for Books for close work is suitable for the seniors that have difficulty reading instructions,receipts,recipes,medicine bottles,reading books,newspapers,magazines and other small print.Magnifiers for Seniors is also useful for children's science lessons and nature exploration to stimulate their curiosity about the outside world