The Expanded View color balanced magnifying lamps provide a flexible expanded extension and a 45-inch stretch range for better illumination. Equipped with an optical, scratch-resistant glass lens, they have shown to reduce eyestrain and fatigue. The diopter is 5 and the 360-degree rotating angle allows a much wider viewing field. They have a uniquely designed, high quality clamp and knobs available at each articulation for easy adjustment. Lamps are available in white, and in a square or round lens version.