BLACK+DECKER PureOptics Summit Zoom Magnifier 10W Flicker-Free Natural Daylight LED Desk Lamp, 5-Diopter Lens USB Port, 6 Dimming Levels (416 Lumens), White (LED10ARCMAG-WHT) LED simulates natural daylight for reduced eye strain and reveals rich, true-to-life colors PureOptics LEDs uses up to 85% less energy than incandescent bulbs and lasts up to 15 years Flicker-free, extra-wide light zone that is glare-free, shadow-free, and halo-free Easy One Touch Control: one tap powers the lamp on to your last brightness setting, and a light press and hold flips through six dimmable brightness levels Features a 5" 5-diopter Optical-Grade Glass Magnifier for ultimate clarity