The perfect companion at your desk, table or work bench for almost any detail task. 5000 hr-life fluorescent bulb produces light spectrum similar to natural daylight without heat or glare of incandescent and halogen fixtures - at a fraction of the energy usage. When you need a closer look of your project, flip up the dust cover on the precision-ground glass lens. Large 5" diameter allows for a full, natural view; 5-diopter magnification has practical 3-5" focal length (object distance from lens) while keeping your face a comfortable distance away. This makes it a great choice as a reading aid, for use with photographs collectibles or detail inspection of arts crafts and electronics. Sturdy clamp base preserves your work space, takes up just a couple inches surface area and has full 360-degree swivel fits desk or table tops to 2" thickness. UL-listed, internal ballast, 72" grounded 3-prong power cord. Includes 8" circular bulb rated for 5000 hrs easy to change and widely available at hardware/home improvement stores for less than $10. Dimensions: total arm length 38", lamp head diameter 8-1/2"; weight 8 lbs. Durable enamel finish in Classic White to match any decor.