LED Handheld Magnifier 3X 75mm Diam. Professional Grade. This magnifier is easy to hold and provides great quality bright image. Great for reading and close-up work. Includes a bright incandescent replaceable lamp. All Cambridge Optics magnifiers have been tested by our engineers and passed as high enough optical and build quality to join our catalog of products.  Cambridge Optics are famous for the quality of their products and product testing.