The Vision-Luxo CIL026698 LED Magnifier with 3.5-Diopter Lens, 39 in. Arm, Edge Clamp Mount, White has a highly flexible, self-balancing lamp head allowing it to be positioned vertically, horizontally and laterally. The fully enclosed neck and internal spring-balanced arm make the Circus LED ideal for environments where cleanliness and sanitation are sought. The CIL026698 also has a large lens which permits comfortable viewing for individuals with impaired vision.