The Vision-Luxo KFL026029 KFM Series LED Magnifier has a heavy-duty metal construction with sleek design and produces nearly 75% greater light output than traditional KFM models. It features an adjustable arm and excellent lighting that makes it perfect for a wide variety of industrial applications and has no knobs to tighten or anything to adjust. The Vision-Luxo KFL026029 KFM Series LED Magnifier also features a hands free neck design that combined with a heavy-duty internal spring parallel, three-pivot K-arm allow it to be secured in any position. This LED magnifier is perfect in environments where FOD is a concern and has quality LEDs positioned a crossed two semi-circular modules. These LEDs allow for virtually shadow-free 3-diopter (1.75X) magnification and excellent color rendition.