Enjoy true color accuracy and clear details, plus reduced glare and eyestrain - all in a compact, efficient lamp you can take with you and use anywhere you go! The OttLite Cordless Rechargeable Task Lamp is a battery-operated lamp designed to provide you with superior quality natural light along with the added benefit of the flexibility to use it wherever you need, without being bound to a power supply. About OttLite 508 Illumination: Not all lighting is created equal! Experience the best of contrast and brightness with OttLite 508 Illumination, a precise blend of light wavelengths that allows the eye to see and focus without the harsh glare, brightness, distortion and fatigue other light sources can cause. With this High Definition Natural Lighting, colors are vibrant and details become incredibly clear - your eyes are going to love it. FEATURES & SPECIFICATIONS: - Illuminates the finest details clearly and colors accurately - Reduces glare and eyestrain - Convenient carry handle - Height extends and shade adjusts for wide illumination - Rechargeable battery provides up to 3 hours of battery use or use with the AC adaptor (included) - OttLite HD Bulb included - Uses Bulb Type C (Replacement Bulb T1333E) - Color: White - One year manufacturer's limited warranty Height: Adjustable from 12.5 in. to 19.75 in. (31.8 to 50.2 cm) Base size is 5.25 in. x 3.75 in. (13.3 x 9.5 cm) Weight: 4.85 lbs.