LWD-3 Lightweight 3x LED Magnifier, 3" 3x main lens and 5x bifocal make this a versatile easy to use magnifier. This Led Magnifiers Wide field of view makes this an ideal reading and inspection and scanning magnifier. This is also useful for those with early to mid stage AMD Macular Degeneration. This Magnifier has a powerful lens that provides a powerful 3x and a wide field of view. Ergonomic design an ultra bright design dual LED make this a useful value priced lighted magnifier for general use and reading. Uses two button batteries (come installed).