It features a high-quality glass lens with 3 diopter magnification that brings tiny details into sharp focus. Flip the switch to shed bright light on the object in view. The lamp's flexible arm extends up to 36" for the perfect angle on your project. - Studio Designs Magnifier Lamp - LED Black, Diopter 3, 1.75X MagnificationStudio Designs Magnifing Lamp, BLACK - This lamp has the same features as the regular Magnifier Lamp, plus all benefits of LED illumination. The energy-efficient LEDs are rated to last 8,000 hours and produce little to no heat. The lamp has a slightly warm color temperature of 4000K and a brightness of 480 lumens.