Lens size 7.5"x6.2", 5 diopter. 80 COOL LED's. Increases size 75% Focal Length: 13" Viewing area:5-inch circleEnergy saving ,110/220 volt. Heavy base for desktop use.-Lighted magnifier provides magnified viewing for a variety of applications such as jewelry making, watch making, needlework, artwork, fly tying, electronic inspection, book reading, print inspection, and stamp collecting
-80 LED lights provide 20,000 hours of high-powered (1,000 lux) illumination to reduce eyestrain and to control brightness
-32-inch, adjustable arm with concealed springs and tension adjustment knobs sets securely in many positions