This product is a computer screen clip-on lamp that cares for your eyes, no screen reflections and does not take up desktop space. Features: Using asymmetric light source design, directional illumination of the desktop range, not illuminate the screen, no glare, more eye protections. Wide illumination range, and clear, the lamp body is designed with an inclination angle, and the keyboard and files in front of the screen are directionally illuminated. Quick and convenient installation and remove, do not hurt the computer screen. Three light modes, stepless dimming. Timed 60 minutes to turn off the lights to relieve eye fatigue and protect the eyes. Light color and light brightness memory function, each use is the brightness and light color you adjusted before, no need to reset. Specifications: Item color: black, white (optional) Light source: LED (2835*78*0.5W/LED) Material: ABS Rated power: 5W Rated voltage: 5V/1A Luminous flux (lm): 201ML Color rendering index: >85 Product color temperature: 3000/4000/6000K (three colors adjustable) Item size: 500 * 104 * 65mm / 19.7 * 4.1 * 2.6in Package size: 535 * 120 * 95mm / 21.1 * 4.7 * 3.7in Package weight: 650g / 1.4lb Packing List: 1 * Reading Light 1 * USB Cable 1 * User Manual