The Dazor 8MC-200 Circline Magnifying Lamp with Desk Clamp has been used by professional jewelers, artists, architects and the visually impaired for years. The 8MC-200 desk lamp features an energy efficient 22watt circline fluorescent, the ideal light source when the intent is to de-emphasize irregular or uneven surfaces. The circular light source will provide a remarkably even and shadow-free light; additionally it works to uniformly illuminate the viewing surface, creating enhanced color contrasts without competing shadows. The 8MC-200/5D comes standard with a 5-Diopter lens providing 125% (1.25x) magnification and a focal length of 8 inches. The 5-inch diameter precision ground lens and crown optical glass supply near-zero light refraction. The lamps contemporary adjustable floating-arm has a 42-inch reach, to allow you to easily position the light source and lens with the simplicity of just a finger. The clamp mounting base and sturdy head construction was designed for continuous and long-lasting use. All these features make the 8MC-200 the perfect lamp for working on detailed crafts or reading fine print in your home or office.