Description: 1. No screen for glare. It has an asymmetric optical design, which only illuminates the table, not the screen, and avoids reflected for glare. 2. Customizable illuminance. The light brightness can be adjusted between 10%-. For the color temperature, there are warm white, natural white and pure white to choose from. The memory function can memorize the color and brightness of the light, which can be adjusted freely and easy to maintain personal settings. 3. Easy to install and use. No screws or tapes are needed to damage the monitor. The clip is suitable for monitors with a thickness of (about 0.4-1.2cm/0.16-0.47inch). The lamp can be used with computer USB ports, mobile power supplies and others with USB sockets. for DC 5V electronic equipment. 4. Save desktop space. The space-saving design makes your computer monitor light steadily located on the top of the display, saving valuable space on the desk, very suitable for limited working space in the office or home. 5. Eye care. The 3 color temperature options that provide for focus and comfort. Warm light makes relaxing cold light work, thereby improving work efficiency. Adjustable brightness level makes the work space healthy for the eyes. Specification: Colour: black Light source: cold and warm dual-color LED Light: positive white light, neutral light, warm light Power: 5W (maximum) Size: about 26cm/10.24inch Suitable for: laptop Material: ABS, PC LED type: SMD3014 Number of LED: 54 Beam angle: 120 degrees Wattage: maximum 5W Voltage: for DC 5V (USB connector) LED life: more than 100000h USB cable length: about 2 meters/78.74inch Dimming type: 4 button switch Light adjustment: 10 per light Number of lamp beads: 84 Box size: about 28*6*4cm/11.02*2.36*1.57inch Weight: about 137 grams Packing List: 1 x USB Computer Lamp