This powerful LED lamp provides the ultimate in high light output with an extraordinary wide spread of light that is fully dimmable. Ideal for work on a large table. Base conveniently clamps to work table. The arm has a long reach of 44" and can be moved easily with one hand. The shade can be positioned effortlessly, exactly where it is needed. A piece of precision engineering, incorporating the latest high power LED technology that is also robust and long lasting. 120 volts. Never change a lightbulb again! LED’s are designed to last 50,000 hours.