The Vision-Luxo 16346WT T9 Fluorescent Magnifier with 5-Diopter Lens, 45 in. Arm, Edge Clamp Mount, White is an ideal lighter-duty magnifier for low-power inspection. This model includes a 22-watt fluorescent circline lamp which provides 360◦ shadow-free illumination. The built-in starter means the switch does not have to be held down for several seconds to illuminate the tube. The 16346WT offers a white finish and a stamped steel shade.