Features all-steel construction, 5" diameter 3-diopter (1.75X) or 5-diopter (2.25X) magnifying lens, and 22W circline fluorescent tube for 360° of shadow-free illumination. Neck of diffuser permits versatile positioning of magnifier head by allowing it to swivel 90° left or right of center. Built-in starter prevents you from having to hold down on/off switch to illuminate the fluorescent tube. Available in different arm lengths (30" or 45" extensions) and a wide selection of mounting options. All models come with spring-balanced arm, on/off switch, 3-wire cord, fluorescent tube, and lamp diffuser cover. Color: Light Gray.