MC-4x/8x Double lens LED Lighted Magnifier set with 2 easy to change Interchangeable lens, Powerful thick double lens 4x,8x power. The interchangeable lenses easily snap on and off the handle base and allow you to have one led magnifier for reading, inspection and detailed inspection. The Powerful double lens design creates a 4x and 8x Magnified view makes this an ideal small text reading and inspection and scanning magnifier for industrial applications, bright LED illumination assists with low light conditions and increased contrast. This is also useful for those with mid stage and advanced stage AMD Macular Degeneration.Uses/requires three "AAA" batteries.