Bright LED Light -- powerful energy-efficient LED lights, use your magnifying glass at night or in those hard to reach dark places to easily illuminate anything. Brightness can be switched according to lighting conditions which will make working enironment more comfortable, improve work effciency, effectively protect eyesight, and aviod visual fatigue. Light source: LED Power: 3W Color temperature: 4500K 6500K Brightness: adjustable Working time: 4 hours or more Charging voltage: 110-240V Working time: 2 hours Illumination: Distance 20CM 50000Lux , Distance 40MM 12500Lux Magnification: 2.5X 3.5X Product features: Product features: low consumption, high brightness, easy to wear, easy to carry, long standby time, easy to operate, mobile and barrier-free. Applicable occasions: Department of Stomatology, ENT, microsurgery, departmental examination, gynecology, orthopedics, laboratory and other lighting needs. Satisfaction Guaranteed- All products have a 30 days unconditional return full refund service and 6 month quality warranty. Try this magnifying glass without risk! (Exquisite packaging can be a perfect gift! )2.5X ,3.5X Loupes: Surgical loupes is very popurlar to Dental, Neurological, Ophthalmology, Otorhinolaryngology, also can be used for Electronic and Industry. Feature: It wide view field, long depth of field, high resolution, low magnification, quick positioning, more exquisite. Professional LED Medical Loupes, Strong recommend to Surgeon, Dentist, E.N.T. Doctors. Handheld or Desktop -- Magnifier glasses can be used as a desktop magnifier by stretching its holder and placing it on the desk. It also can be folded to serve as a hand-held magnifier to realize wider application range. Height Adjustable-- Compact and stylish design, portable weight, easy to use, 3 moveable joints ensure holder can be stretched to any height according to your needs when used as a desktop magnifier. With comfortable ergonomic handle suitable for children, adults, seniors, hobbyists and professionals.