Clipon book light: compact size and light weight make this lamp easy to use without adding bulk. The clipon design attaches securely to book spines, pages, or edges, saving space and effort. USB rechargeable: builtin rechargeable battery. Recharges via USB from power bank, wall charger, laptop, or computer. No disposable batteries needed. LED light and quality construction: energyefficient LED with durable materials and careful manufacturing. Simple in appearance but designed for reliable performance and long life. Three color temperatures with adjustable brightness: three color temperature settings to switch between warm, neutral, and cool light. Brightness level is easily adjustable to suit your reading or working environment. Clipon reading light for books: specifically designed for clipping onto books, magazines, or documents. Provides focused illumination exactly where you need it. Use scenarios: Reading in bed without disturbing a partner: attach to the book and illuminate only your page. Studying at a desk or in a library: adjustable brightness and color temperature help reduce eye strain. Travel or hotel room reading: compact, lightweight, and USB rechargeable for convenient use on the go.