Features ? Brings full spectrum daylight indoors for the best reading and project light ? Global Cooling Bulb gives 150 W of light from 27 W and lasts 10,000 hours ? No-buzz operation and instant-on flicker-free light ? Lamp shaft pivots 90-degrees, head turns 360-degrees to shine light where you need it ? Height adjusts between 3.5-in. - 26-in. This lamp combines superb quality illumination that?s easy on the eyes with a contemporary sleek design in a brushed stainless steel finish. Its energy-efficient, patented Global Cooling fluorescent bulb provides 150W of light from only 27W of power and lasts 10,000 hours - more than 10 times the life of traditional incandescent bulbs. The Modern desk lamp utilizes two adjusting knobs and a pivoting shade to direct bright illumination onto your book or project. This is a great low vision lamp. Unlike conventional lighting, the Optix lens focuses Full spectrum light without reflective glare for an added level of reading comfort and protection. The lens actually directs the path of light waves to create consistent, well-balanced illumination. By controlling the path of the light, there are no irritating ?hot spots? on your book or work area. Reading is once again a joy without the strain of other light sources. The lamp is shipped fully assembled. Includes bulb. 1-year manufacturer?s limited warranty. Product specifications: Weight: 5.2 lbs. Base Diameter: 8-inches Height: 17.625 inches Head Dimensions: 9.375-in. L x 5.0-in. W x 2.0-in. H Switch: On/Off Cord Length: 60 inches (5 feet) Diffuser Dimensions: 7-in. x 3.75-in. x 0.3-in. Replacement Bulb: 27-Watt Compact Fluorescent - CFML27VLX