The innovative ProVue SuperSlim is an efficient and powerful magnification lamp. Featuring 60 energy-efficient LED lights for bright, shadow-free illumination for your work bench and a 5 inch round lens with a power of 8 diopter (3x magnification).5 inch, 8-Diopter crystal-clear glass lens for distortion-free viewing.Fully covered spring balanced arm.Modern Super Slim design, stylish stainless steel ring.Adjust the tension knob to set your position, Includes a heavy-duty mounting clamp.60 SMD LED Lights provide bright, energy efficient illumination, 20,000 Hours of high output life.