This LED reading light has 3 brightness adjustments. Settings of the reading lamp are more than others. Suitable for various scenarios and people who are sensitive to light. This LED book light simulates the natural light diffuse reflection, reduce multiple shadows, clear view, no flash, no glare. Unlike other book lamps that emitted from one point, will cause eye fatigue. The flexible neck allows you to bends and twists to the exact position, clip light giving you plenty of light wherever you are. USB rechargeable lithium battery clip lamp, longer battery life, no delay in work and study. The rechargeable function allows you to read anywhere, save the trouble of connecting wires.