This USB e-reading LED lamp provides adjustable color temperatures and is designed to prevent screen glare. With its asymmetric optical design, it lights up only the table and not the screen, minimizing reflective glare. You can choose from three color temperatures to enhance focus and comfort. Warm light helps in relaxation, while cool light boosts productivity, thereby enhancing efficiency. Its space-saving design ensures the lamp stays securely atop the monitor, thus freeing up valuable desk space, ideal for limited workspaces at home or in the office. It's easy to install without the need for screws or tapes that could damage your screen. The clip fits monitors with a thickness of approximately 0.4-1.2 cm (0.16-0.47 inches). The lamp is compatible with USB ports from computers, mobile power banks, and other USB socket-equipped devices with DC 5 V power.