Our famous ?Big Eye? is one of our largest magnilites with either a 7.5? 3 diopter or a 7.5? 4 diopter (2X) optical quality lens. Wrapped in an ESD safe shade, it includes a 10? shadowless 34 watt circline bulb. Available with either (#13362) cool white or our exclusive (#13363) ?Glare-Free? bulb which helps to reduce glare on solder connections or any shiny surface. Offered on our 25? or 43? Ultraflex arms, it?s rugged, smooth and easy to use. See why the ?Big Eye? leads the world in quality and viewing area compared to other smaller round magnifiers.