? RECTANGULAR SHAPES THE WAY YOU NATURALLY READ: The rectangular lens is especially design to simulate the way we naturally view things from left to right, the magnifying lens covers large viewing area without having your hands move all the time, lens is measured 4.35"x 2.7" and magnifies up to 400%. ? LIGHTWEIGHT & ERGONOMIC HANDLE: Thanks to the special design premium lighter lens it only weighs 6.5oz, in addition, the handle of this LED magnifier is ergonomically designed to grip/hold comfortable for most hands, making it ideal for anyone who loves to read for longer period of time. ?REDUCE EYE STRAIN & DIMMABLE LIGHTING : This led magnifier is clinically proven to be ideal for anyone who strains their eyes to see words on a page because it magnifies and provides light without glare. The roller dimmer allows you to easily adjust the brightness level(peaks at 600 lumens) with the tap of a finger to achieve the perfect lighting for various tasks. ? CRYSTAL CLEAR ACRYLIC LENS: Made out of optical grade acrylic which is lighter and more scratch-resistant & shatterproof than glass while provides the same clarity level. Magnifies up to 4x(400%) without optical distortion. Optimal to enhance reading and viewing very fine details in books, newspapers, magazines, photographs, maps, electronics, miniatures, jewelry, pill bottles, medications, hobbies, models, and crafts of all kinds. ? FAST CHARGE TECHNOLOGY & 10 ULTRA BRIGHT LEDs: Recharge in just 2 hours with included Micro USB cable, Up to 12 hours (Medium-Brightness mode) of powerful, non-diminishing brightness from the included premium rechargeable 700 mAh battery. Our LEDs boast an extended 100,000-hour lifespan which is equivalent to 20 years without burning out or overheating.